Therefore an individual may be fit in one environment but not another.

因此某个个体可能适应某一种环境，而对另一种环境则不适应。

youdao

He won't be fit to play in the match on Saturday.

他身体不适，不能在星期六出场比赛。

《牛津词典》

The newspaper article had branded her a social leper not fit to be seen in company.

报纸上的这篇文章给她冠以“社交毒药”之名，称人皆不宜与其为伍。

《柯林斯英汉双解大词典》

Cereal would be--a serving of cereal would be about the amount that would fit in a wine glass, but people think that you fill up a bowl and that becomes a serving, but a typical amount of cereal that people serve themselves might be two or three times what the ordinary size is.

这是一餐份量的麦片,放在酒杯里大概那么多,但人们认为满满一碗才是一份,人们通常所食用的麦片,是原来大小的二到三倍

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

It means Beckham faces a race to be fit in time for the culmination of the Galaxy's season.

BBC: Beckham out of England qualifiers

Asif suffered a bruised thigh but will be fit in time for Pakistan's first game, against Scotland, on 12 September.

BBC: Shamed Shoaib pleads for leniency

"I had hoped that he would be fit in time for the World Cup, " the Germany coach said on Tuesday.

BBC: Scholl out of finals reckoning