习惯用语：
fit to burst 几乎要爆炸
laughing fit to burst 几乎笑破了肚皮
fit to drop 几乎倒下
think fit to do 决定做
The president has thought fit to let the university laboratories open to the enterprises.校长已经决定让学校实验室向企业开放。
fit the bill 正合需要
in fits and starts 凭一时高兴；一阵阵地
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