大学英语：重要词汇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.impose…on 把…强加给

386.impress…on 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