423. at large(=at liberty, free) 在逃, 逍遙法外

　　at large(=in general) 一般來說, 大體上

　　at large(=at full length; with details)詳細地

　　424. lean against (背)靠著…

　　425. at least 至少; at most 至多

　　426. (not) in the least 一點(也不), 絲毫(也不)

　　427. at one’s leisure 在…有空的時候

　　428. lend itself/themselves to適合于(某用途)

　　429. at length (=after a long time, at last)終于

　　at length (=in detail, thoroughly)詳細地

　　430. go to any length想一切辦法, 盡一切力量

　　431. be liable to (=be subject to)易于..的,應受(罰)

　　432. be liable for 對…應負責任的

　　433. lie in 在于

　　434. in life 一生中

　　435. for life 終身

　　436. in the light of (=considering; taking into account) 考慮到, 根據(jù)

　　437. throw light on ( = make clear, explain) 使…更為清楚, 提供線索, 闡明

　　438. in line with(=in agreement with)符合,一致

　　439. long for(=want very much)渴望,希望得到

　　440. for long 很久,很長時間(否定句.疑問句中)

　　441. before long (=soon)不久, 過了不久以后.

　　442. in the long run (=in the end)從長遠來說,最后; in the short term (從短期來說)

　　443. (be) at a loss 不知所措

　　444.major in 主修(某課程)

　　445. as a matter of fact 實際上, 事實是

　　446. by all means (=at all costs)不惜一切.

　　(=certainly) 當然行;by means of用…; by no means 完全不, 決不

　　447. on memory of 為紀念…

　　448. on the mend (=in the process of recovering) 好轉(zhuǎn), 在康復中

　　449. mention sth. to sb. 向某人提起某事

　　450. at the mercy of (=in the power of) 任…擺布, 在…支配下

　　451. be in a mess 亂七八糟, 處境困難

　　make a mess of 弄亂, 打亂

　　452. bear(or keep)…in mind(=remember)牢記

　　453. bring(or call)to mind(=remember)使回想起

　　454. by mistake(由于粗心,健忘原因而)錯誤地

　　455. at the moment (=now) 此刻,現(xiàn)在