例句：

　　Her words had a magical effect on us.

　　她的話對我們有一種魔力般的作用。

　　The effect has proved hard to reproduce.

　　這種效果經證實很難再造。

　　His voice had an almost hypnotic effect.

　　他的聲音有一種近乎催眠的作用。

　　His words had exactly the opposite effect.

　　他的話產生了截然相反的效果。