每日一句口语：
A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty. 悲观主义者在每个机会里看到困难；乐观主义者在每个困难里看到机会。
【知识点讲解】
pessimist n.悲观主义者，悲观者； 厌世者
例句：
You don't have to be a pessimist to realize that we're in trouble.
不是悲观论者也能意识到我们有了麻烦。
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