1. be identified with被视为与…等同

2. in ignorance of不知道…

3. be ignorant of ( = lacking knowledge)对…不了解，不知道

4. (an) impact (on)对…的强烈影响

5. impose…on把…强加给

6. impress…on给…留下印象

7. make (leave) an impression on sb. =give sb. an impression给…留下印象

8. under the impression that有……的印象，认为

9. 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

10. improve in (=get better)有改进，好些