Many children are so unfit they are unable to do even basic exercises.

许多孩子非常不健康，连基本的健身锻炼都无法完成。

He had a third examination and was declared unfit for duty. [+ for]

他接受了第三次检查，被告知不宜上班。

Mr Abel's doctor has said he is unfit to travel.

埃布尔先生的医生说他不宜出行。

Existing houses are becoming totally unfit for human habitation. [+ for]

现有的房子正变得完全不适合住人。

They were utterly unfit to govern America.

他们完全没有能力治理美国。

She is an unfit mother.

她是一个不称职的母亲。