例句：

　　The appropriate word eluded him.

　　他想不起來那個合適的詞。

　　What's the meaning of this word?

　　這個單詞的意思是什么？

　　The first word begins with an F.

　　第一個詞以F開頭。

　　It's not a word in common usage.

　　這不是一個常用詞。

　　I didn't believe a word she said.

　　她說的話我一句都不信。