381. be identified with被视为与等同 382. in ignorance of不知道 383. be ignorant of(= lacking knowledge)对不了解,不知道 384.(an)impact(on)对的强烈影响 385. imposeon把强加给 386. impresson给留下印象 387. make(leave)an impression on sb. =give sb. an impression给留下印象 388. under the impression that有的印象,认为 389. improve sth.(make sth. better)把原物改进;improve on(=produce or be sth. better than)另做一物比原物更好 390. improve in(=get better)有改进,好些