He is physically weak but mentally sound.

他身体虽弱，但思想健康。

youdao

He is strong physically, but weak mentally.

他身体强健，但精神虚弱。

youdao

I became very weak mentally.

我在精神上显得很脆弱。

youdao

The old professor is physically weak but mentally sound.

这位年迈的教授身体虽弱，但思想健康。(副词转译为名词)。

youdao

The old professor is physically weak but mentally sound.

这位年迈的教授身体虽弱，但思想健康。(副词转译为名词)。

youdao