众所周知，词汇是GRE考试的基础。那么怎样才能掌握GRE必备的词组呢？
这里为大家总结一些常用的核心词组，希望对各位备考有帮助。

本期GRE必备词组:
at first glance 乍看之下

  释义:

If you say that something is true or seems to be true at first glance, you mean that it seems to be true when you first see it or think about it, but that your first impression may be wrong.

 例句

At first glance his conclusion seems convincing, but a closer scrutiny reveals a critical flaw in his assumption.

 GRE

As my own studies have advanced, I have been increasingly impressed with the functional similarities between insect and vertebrate societies and less so with the structural differences that seem, at first glance, to constitute such an immense gulf between them.
随着我自己研究的进展，我逐渐对昆虫和脊椎动物社会中功能上的相似性感到印象深刻，而乍看之下构成两者之间巨大鸿沟的社会结构差异则不那么令人惊讶
。