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、认为： insist, maintain, assert, conclude, deem, hold, argue, be convinced, be firmly convinced, be fully convinced
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、导致： Lead to, bring about, result in, cause, spark off, conduce to, procure, induce, generate
16、因此：So, therefore, thus, hence, consequently, as a consequence, accordingly, as a result, because of this, as a result of this
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
21、有益的：Useful, helpful, beneficial, profitable, rewarding， advantageous
22、影响：Influence, impact, effect
23、明显的：Clear, obvious, evident, self-evident, manifest, apparent, crystal-clear
24、对比而言：By contrast，in contrast，on the other hand，on the contrary=，conversely
25、展示：Show, reveal, illustrate, demonstrate, depict, present, represent, describe
26、大约：Approximately，almost，about，around，nearly，roughly
27、换言之：Namely，that is to say，in other words，to put it like this，to put it differently，to put it from another way，to put it from another angle
