All that's needed for evil to triumph is that good men do nothing.

语音讲解：
单词发音
evil /ˈiːvl/
triumph /ˈtraɪəmf/
needed /niːdɪd/
men/men/
连词发音
that good men /ðətɡʊdmen/
轻读重读
重读：all/evil/triumph/good men/do nothing
弱读：that's/for/to/that

词汇讲解
triumph vi.获胜
Her triumph was a cause for celebration .
她的胜利是庆祝的理由。
victory:普通用词,主要指在战争、斗争或竞赛中获得的胜利,侧重艰辛与成功.
win:主要指通过努力、斗争、比赛等而获得胜利
triumph:着重胜利或成功的辉煌与彻底.
success:统指“成功”,为抽象名词,单数形式指“一件成功的事或人”,复数形式successes指“多件成功的事或人”.

活学活用
all that's needed...唯一需要的...
英文：All that's needed for this area is peace.
中文：这个地方需要和平

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