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：Key, crucial , critical, important, significant, vital, substantial , indispensable, imperative

　　9.认为：Think, believe, 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： Bad, 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.增长至：Grow to，rise to，increase to，go up to，climb to，ascend to，jump to，shoot to

　　18.降低至：Dip to，fall to，decline to，decrease to，drop to，go down to，reduce to， slump to，descend to，sink to，slide to