例句：
Her words had a magical effect on us.
她的話對(duì)我們有一種魔力般的作用。
The effect has proved hard to reproduce.
這種效果經(jīng)證實(shí)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(chǎn)生了截然相反的效果。