17. on earth 究竟, 到底, 全然
18. with ease ( = easily) 容易, 不费力
19. at (one’s) ease ( = without worry or nervousness) 自在,不拘束
20. put sb. at his / her ease (=free sb. from worry or nervousness)使某人感到无拘束
21. economize on (=save sth. instead of being wasteful) 节省
22. have an effect on 对…有影响
23. be in effect (=be in operation) 有效
24. go into effect 生效. ( 近: come into effect; take effect; be brought into effect)
25. in effect (=in fact, really) 实际上
26. give effect to (=carry out) 实行,使…生效
27. to no effect 不起作用,没有取得任何效果
28. (be) of no effect (=useless) 无效
29. to the effect that 大意是…,主要内容是…
30. to that effect 是那个意思的…
31. emerge from ( =appear, become known ) 出现, 暴露(问题. 意见等)