新GRE常考察词汇obviate

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　　obviate: v.1.排除，消除 2.避免，使成为不必要

　　1) to prevent or make unnecessary through anticipation

　　Our careful preparations for the move obviated the expense of having the movers help us pack.

　　The river was shallow enough to wade across at many points, ehich obviated the need for a bridge.

　　Synonyms: avert, hinder, preclude

　　 to make unnecessary

　　The invention of cars has obviated the use of horse and carriage.

　　A cure for the common cold would obviate the need for shelf after shelf of cold remedies.

　　obviate : unnecessary = reduce : smaller

　　obviate : unnecessary = emulate : exemplary 排除 不需要的= 仿效 模范的

　　obviate necessitate

　　新gre对单词的考察并没有降低反而还有所提高，因此备考新gre考试词汇仍是迫在眉睫的问题，俗话说：万丈高楼平地起只有精确熟练的掌握了词汇，才可能在征服新gre考试的道路上立于不败之地。