430. go to any length想一切辦法, 盡一切力量

429. at length (=after a long time, at last)終于 at length (=in detail, thoroughly)詳細地

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

427. at one’s leisure 在…有空的時候

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

425. at least 至少; at most 至多

424. lean against (背)靠著…

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

422. to(the best of) one’s knowledge 據(jù)…所知

421. keep…to oneself(=keep secret)不告訴別人