1、解决: Solve, deal with, cope with, handle, resolve, address, tackle

2、损害：Damage, hurt, injure, harm, impair, undermine, jeopardize

3、给与：Give, offer, render, impart, provide, supply, afford

4、培养：Develop, cultivate, foster

5、优势：Advantage, merit, virtue, benefit, upside, strength

6、缺陷：Disadvantage, demerit, drawback, downside, weakness

7、使迷惑：Puzzle, bewilder, perplex, baffle

8、重要的：crucial, critical, vital, substantial, indispensable, imperative

9、影响：Influence, impact, effect

10、保护：Protect, conserve, preserve

11、确保：Assure, ensure, guarantee, pledge

12、有害的：baneful evil, harmful, detrimental

13、要求：Request, demand, needs, requisition

14、消除：Eliminate, clear, remove, clear up, take away, smooth away

15、明显的：Clear, obvious, evident, self-evident, manifest, apparent

16、大约：Approximately，almost，about，around，nearly，roughly

17、宣称：Allege, assert, declare, claim

18、发生：Happen, occur, take place

19、原因：Reason, factor, cause

20、发展：Development, advance, progress