■ occur

不一定是“发生”，可以是“某个想法（主语）出现在某人头脑中”，这个人用介词 to 引入，想到要做什么事，用 to inf. 表示；想到的内容，用 that 从句表示。

• That idea had already occurred to me.那个主意，我原先已经想到过。
• It didn't occur to me to ask.我没有想到去问。
• It never occurs to him that I might want to go.他从来都不会想到我竟然会想去。
• It occurred to me later that he was lying.我后来想到，他是在说谎。
• It had not occurred to her she would need such warm-weather clothes in Britain.她原先没有想到在英国居然需要这样凉快的衣服。