length是什么意思

短语搭配

(1)at length详细地；全面地；很长时间之后

(2)focal length焦距

(3)path length路径长度；轨迹长度

(4)word length字长

(5)restriction fragment length polymorphism限制性片段长度多态性；限制片多长态性

(6)the length and breadth of整个；到处

(7)dress length够做一条连衣裙的布料

(8)keep someone at arm's length避免与（人；物）亲近

(9)at arm's length以一臂之远；在伸手可及之处

(10)keep something at arm's length避免与（人；物）亲近

(11)measure one's length摔倒；跌倒

(12)in length长度为；在长度上；在篇幅

(13)length of time时间长度；持续时间；时间长短

(14)total length总长度；全长

(15)full length全长；总长

(16)average length平均长度

(17)maximum length最大长度；最长长度

(18)length of stay停留时间；逗留时间；居留时间

(19)same length相同长度

(20)great length详细地；具体地

(21)arc length弧长度；弧长；电弧长度

(22)overall length整体长度；整体篇幅；总长度

(23)whole length整个长度；全部长度；全长

(24)run length运行长度

(25)side length边长；边的长度

(26)arm length臂长；手臂臂长

(27)gauge length量规长度；标距长度；计量器的长度

(28)stroke length冲程长度；行程长度；笔画长短

(29)coherent length相干长度；粘结长度

(30)length overall总长度；总长；全长

(31)file length文件长度；文件记录长度

(32)sleeve length袖子长度；套筒长度；袖长

(33)barrel length枪管长度；筒体长度；筒长

(34)length of maturity期限；到期日

(35)gage length规范长度

(36)limit length限制长度；有限长

(37)shorten length缩短长度

(38)persistence length持续长度；持久长度；余辉长度

(39)determine length确定长度

(40)length of internode节间长度

(41)length of……的长度

双语例句

(1)His length just meets the minimum requirement to participate in the competition.

他的身高刚好达到了参加比赛的最低要求。

(2)The length of this competition has been extended from last year.

本次比赛的赛程较去年有所延长。

(3)The length of this article exceeded my expectations.

这篇文章的篇幅超出了我的预期。

(4)This car is five meters in length.

这辆车有5米长

(5)With photos, if you angle the camera up, you can enhance the length of someone's legs.

拍照的时候，如果你让相机角度朝上，就可以使人的腿显得更长。

(6)Your waist looks like a 25 and your length is probably a 30, but that's hard to come by.

你的腰围看上去也就25，裤长可能得30，但这样的尺寸可能不是很多。

(7)It is about a metre in length.

它大约有一米长。

(8)The river is 300 miles in length.

这条河长300英里。

(9)The sleeves are unequal in length.

这两只衣袖不一般长。

(10)Did you see the length of his hair?

你看见他头发有多长吗？

(11)This room is twice the length of the kitchen.

这个房间的长度是厨房的两倍。

同义词

n. 长度，长；时间的长短；音长

词根词缀

同根词 leng 长

(1)lengthen v. 使变长；使（元音，音节）拖长

(2)lengthy adj. 过长的；冗长的

-th 名词后缀

(1)truth n. 事实；真相；真实性；（Truth）人名：特鲁思

(2)breadth n. 幅度；宽度；广度；广泛性；宽宏；宽容；门幅；幅面；一幅；整体效果

(3)warmth n. 暖和；温暖；暖热；热情；热心；激动；仁慈

(4)stealth n. 秘密行动；背人的活动；隐形

(5)growth n. 生长；成长；增大；发展；生长物；一熟；某葡萄园所产的葡萄；由这些葡萄酿造的葡萄酒；赘生物；发育

(6)mirth n. 欢乐；欢笑

同根词

词根 long

(1)long adj. 长的；过长的；做多头的adv. 长期地；始终n. 长时间；[语] 长音节vi. 渴望；热望

(2)lengthy adj. 漫长的，冗长的；啰唆的

(3)lengthwise adj. 纵长的adv. 纵长地

(4)longish adj. 稍长的；略长的

(5)lengthily adv. 冗长地；长地

(6)longwise adv. 纵长地

(7)lengthiness n. 冗长

(8)longness n. 长度

(9)lengthen vi. 延长；变长vt. 使延长；加长

释义

n.

[mass noun]the measurement or extent of something from end to end; the greater of two or the greatest of three dimensions of a body

长度；长（比宽和高都长的边）

it can reach over two feet in length

它可以延伸到两英尺长以上

the length of the coast track.

岸边路的长度。

the amount of time occupied by something

时间长度，所需时间

delivery must be within a reasonable length of time.

必须在合理的时间内送到。

the quality of being long

长

the length of the waiting list.

等候者名单的长度。

the full distance that a thing extends for

（伸展的）全长

the muscles running the length of my spine.

从头到尾地靠着我脊椎骨的肌肉。

the extent of a garment in a vertical direction when worn

衣服穿在身上时的长度

the length of her skirt.

她裙子的长度。

Prosody & Phonetics the metrical quantity or duration of a vowel or syllable

【诗 韵，语音】 （元音或音节的）节奏音长；节奏音延。

the extent of something, especially as a unit of measurement

（尤指作为计量单位的）长度：

the length of a swimming pool as a measure of the distance swum

（计量游泳距离的）泳池长度

fifty lengths of the pool.

５０个泳池长度的游泳距离。

the length of a horse, boat, etc., as a measure of the lead in a race

（比赛中计量领先量的）马身长；船身长

the mare won the race last year by seven lengths.

去年那匹母马以领先七个马身的优势赢得比赛。

( one's length)the full extent of one's body

身高

he awkwardly lowered his length into the small car.

他尴尬地弯下身钻进小车。

(in bridge or whist)the number of cards of a suit held in one's hand, especially when five or more

（桥牌或惠斯特牌中的）手中牌长（多指五张以上某同花牌）。

a stretch or piece of something

一段，一片

a stout length of wood.

粗粗的一段木头。

a degree or extreme to which a course of action is taken

（行动的）程度（或最大程度）

they go to great lengths to avoid the press.

他们费尽心机躲开新闻媒体。

Cricket the distance from the batsman at which the ball pitches, especially a ball that is well bowled

【板球】 球距（指投球落点与击球手之间距离）

Lewis tended to bowl short of a length.

刘易斯投球老是不到位。

短语

at length 1 in detail; fully 详细地，全面地 these aspects have been discussed at length. 这些方面都已详细讨论过了

2 after a long time 很长时间之后 at length she laid down the pencil. 很长时间之后，她放下铅笔

the length and breadth of the whole extent of 整个，到处 women from the length and breadth of Russia. 来自全俄罗斯的妇女

易错必背词

a length of sth …的长度

(1)Training for a marathon requires careful preparation and steady, gradual increases in the length of the runs.

马拉松训练需要细心的准备和逐渐稳定增加的运动里程。[全国卷II 2015 高考 阅读理解]

(2)They also measure waves from crest to crest to determine the length of a wave.

他们还从波峰到波峰测量波浪，以确定波浪的长度。[青岛市卷 2020 中考 阅读理解]

at length 详细地

(1)These aspects have been discussed at length.

这些方面都已详细讨论过了。[经典例句]

词源

"Old English lengthu, of Germanic origin; related to Dutch lengte, also to LONG1."

考纲分布

近6年出现10次

重要程度: 5星

100%; n 长; 长度

0%; n 时间长度

考纲释义

( 1)n. 长; 长度

英文释义：the quality of being long

真题例句：

The network is expected to double in length again, to 70,000 kilometers, by 2035.

预计到2035年，该网络的长度将翻倍，达到70000公里。[2021年 永州市卷 阅读理解]

They also measure waves from crest to crest to determine (测定) the length of a wave.

他们还从波峰到波峰测量波浪，以确定波浪的长度。[2020年 青岛市 阅读理解]

What is the meaning of "the length of a wave" according to paragraph 3?

根据第3段，“the length of a wave”是什么意思?[2020年 青岛市 阅读理解]

( 2)n. 时间长度

英文释义：the amount of time that something lasts

真题例句：

Studying long-living mammals is another way to prove the molecular(分 子) basis of extended ‘health length.

研究长寿的哺乳动物是证明延长“健康长度”的分子基础的另一种方式。[2018年 连云港卷 阅读理解D]

必考派生词

longing n. 渴望

length n. 长度；长；一段；一片；程度；球距；时间长度；身高

longer adj. 比较久的；较长的；（long的比较级）

考纲分布

近12年出现4次

重要程度: 4星

100%; n 长; 长度

考纲释义

( 1)n. 长; 长度

英文释义：the quality of being long

真题例句：

The traffic signals along Factoria Boulevard in Bellevue, Washington, generally don't flash the same length of green twice in a row.

华盛顿州贝尔维尤市Factoria大道上的交通信号灯一般不会连续两次闪现相同长度的绿色。[2020年 浙江卷 阅读理解]

Training for a marathon requires careful preparation and steady, gradual increases in the length of the runs.

马拉松训练需要细心的准备和逐渐稳定增加的运动里程。[2015年 全国卷2 阅读理解]

必考短语

(1)at length最后; 终于; 详细地

必考派生词

lengthy adj. 过长的；冗长的

length n. 长度；长；一段；一片；程度；球距；时间长度；身高

考纲分布

近9年出现9次

重要程度: 5星

78%; n 长; 长度

11%; n 时间长短

11%; phr (at length)长时间地

考纲释义

( 1)n. 长; 长度

英文释义：the quality of being long

真题例句：

The plane stretches a total length of 54 meters, where experienced scuba divers will eventually be able to venture through the cabin and around the plane's exterior.

这架飞机延伸的总长度为54米，经验丰富的潜水员最终将能在机舱内部和飞机外围冒险。[2019年 CET4 阅读理解]

( 2)n. 时间长短

英文释义：the amount of time occupied by something

真题例句：

We wanted to know if the length of time food is in contact with a contaminated surface affected the rate of transfer of bacteria to the food.

我们想知道食物与受污染表面接触的时间长短是否会影响细菌向食物转移的速度。[2018年 CET4 阅读理解]

No matter how it happened, millions of Americans are putting their health, quality of life and even length of life in danger.

无论它是如何发生的，数以百万计的美国人正将他们的健康、生活质量甚至寿命置于危险之中。[2016年 CET4 听力]

The length of their driving experience.

他们驾驶经验的长度。[2016年 CET4 阅读理解]

( 3)phr. (at length)长时间地

必考短语

(1)at length详细地; 全面地; 很长时间之后

必考派生词

longing n. 渴望

length n. 长度；长；一段；一片；程度；球距；时间长度；身高

lengthen v. 使变长；使（元音，音节）拖长

考纲分布

近9年出现9次

重要程度: 5星

78%; n 长; 长度

11%; n 一段; 一节

11%; n 时间长短

考纲释义

( 1)n. 长; 长度

英文释义：the quality of being long

真题例句：

These beams formed the cross-shaped roof that ran the length of the central part of the cathedral.

这些横梁构成了横跨大教堂中心部分的十字形屋顶。[2021年 CET6 阅读理解]

( 2)n. 一段; 一节

英文释义：a piece or stretch of something

( 3)n. 时间长短

英文释义：the amount of time occupied by something

必考派生词

lengthy adj. 过长的；冗长的

length n. 长度；长；一段；一片；程度；球距；时间长度；身高

lengthen v. 使变长；使（元音，音节）拖长

考纲分布

近16年出现1次

重要程度: 3星

200%; n 时间长短

0%; n 篇幅

0%; n 长; 长度

0%; n 一段; 一节

0%; n (~s)程度

考纲释义

( 1)n. 时间长短

英文释义：the amount of time occupied by something

真题例句：

Whichever approach, the key is to determine your length of focus time and stick to it.

无论采用哪种方法，关键在于确定你的聚焦时间并坚持到底。[2018年 英语二 阅读理解A]

( 2)n. 篇幅

英文释义：the content occupied by something

( 3)n. 长; 长度

英文释义：the quality of being long

( 4)n. 一段; 一节

英文释义：a piece or stretch of something

( 5)n. (~s)程度

英文释义：an extreme to which a course of action is taken

必考派生词

lengthy adj. 过长的；冗长的

length n. 长度；长；一段；一片；程度；球距；时间长度；身高

longer adj. 比较久的；较长的；（long的比较级）

用法讲解

短语at last和at length都有“最后，终于”之意，区别在于： at last多指经主观努力，克服各种困难后才终于达到目的。 at length强调经历一段长时间后终于完成，侧重在时间部分。

at length还表示“详细地”，如“debate the subject at length展开详尽的辩论”。

(1)I spoke at length last night with Governor Conway.

我昨晚跟康威州长深谈过。《House of Cards Season 4》《纸牌屋 第四季》

(2)Here, we grow kombu, large seaweeds which can grow to three metres in length.

我们在这里种植海带，这是能长到3米长的大海藻。《Planet Ocean》《海洋星球》

(3)Laid out, its individual sections stretch for 13,000 miles, longer than the length of North and South America combined.

各个部分互相连接，蜿蜒两万多公里，比南北美的总长还长。《China from Above》《鸟瞰中国》

(4)There's no possible way to answer that. A car length is not a standardized unit of measure.

没有可能能回答这个问题，"车身长"不是个标准化的度量单位。《The Big Bang Theory Season 2》《生活大爆炸 第二季》

(5)I agree. It's plainness is a virtue. And I'm sure we can do something about the length.

是，朴素倒成了优点了，长度我们也能调整一下。《Downton Abbey Season 6》《唐顿庄园 第六季》

(6)Do you understand how creepy this is? Oh, yes, we discussed it at length last night.

你知道这有多么的恐怖吗？是的，我们昨晚讨论了好久。《The Big Bang Theory Season 1》《生活大爆炸 第一季》

(7)It's what we think caused your narcissistic personality disorder. We discussed it at length during our last video chat. Although how we got onto the subject of you is baffling.

我们认为正是这一点引起了你的自恋型人格障碍，我们上次视频聊天时详细地探讨了这个问题。虽然不知道为什么会提到你。《The Big Bang Theory Season 3》《生活大爆炸 第三季》

(8)Hey, guys, bad news. I just did a quick calculation. Given the size of the theater and the length of this line, we might not get seats.

伙计们，坏消息，我刚刚算了一下，根据电影院的大小和队伍的长度我们可能没座位了。《The Big Bang Theory Season 4》《生活大爆炸 第四季》

(9)See ya, boys. Bye. Bye. All right, got his enemies list. Ooh, he updated the interface. You can search by first name, last name or length of grudge.

回见了各位。再见。好了，找到他的仇敌名单了。他更新了他的界面。可以按姓名，和怨恨的程度分别查找。《The Big Bang Theory Season 12》《生活大爆炸 第十二季》

(10)Sheldon, I'm warning you, I can play this game, too. If it's like your 3-D chess game, then you're out of your length, width and depth.

谢尔顿，我警告你，你玩的小把戏的我也会玩。如果你玩小把戏和玩三维象棋的水准一样，那你可是在三个维度上都不自量力。《The Big Bang Theory Season 10》《生活大爆炸 第十季》

(11)A thousand horizontal wells have been sunk into the earth and then connected by canals over 3,000 miles in length, directing water from the Tian Shan mountain glaciers 100 miles to the north, to their fields and villages.

数千个深入大地中的水平井，而后由长度唱过三千英里的运河连接，将一百六十公里外的天山冰川融水引入她们的田野与村庄。《China from Above》《鸟瞰中国》

(12)Turpan, home of the Uygur people, seen from the air is a dry and desolate dessert, dotted by thousands of mysterious pock marks, holes that lead to a two-thousand-year old subterranean system, that's longer than the length of India, the Karez canal network.

吐鲁番是维吾尔族人的家园。俯瞰吐鲁番，是一片荒芜干燥的沙漠。数千个神秘的麻斑星罗棋布。这些洞是绵延至少两千多年的地下水系统，比整个印度还长——坎儿井运河系统。《China from Above》《鸟瞰中国》