对于正在备考托福的考生来说，词汇是特别重要的，不管是听力、写作、阅读还是口语，都关系着词汇。

Confusion is a word we have invented for an order which is not understood.

我们为了不了解的规则，发明了困惑这个词汇。

blunder verb

[ˈblʌndər] 

make one's way clumsily or blindly

犯愚蠢的(或粗心的)错误

例句：

His blunder would certainly queer his chances of promotion.

他犯的大错肯定会毁了他晋升的机会。