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