劳累的的英文：
toilsome

Being tired and unhappy put years on him.
由于劳累和心情不好，他苍老了很多。

But Hunter worked so hard that he overstrained his heart.
但是，亨特工作十分刻苦以致心脏过于劳累。

Incapable or seemingly incapable of being fatigued;tireless.
不懈怠的不能或看起来不能疲倦的;不知劳累的

The great mental strain and overwork shattered his mind.
巨大的精神负担和过度劳累使他心智受损。

Poor health is a necessary result of over-exertion.
体弱是过度劳累的必然结果。

Dazed or confused,eg after working intensely
头昏眼花的(如劳累之后)

Incapable of physical exertion
体力上不能劳累的

Teacher was worn down with fatigue.
老师因劳累而疲乏不堪。

She fainted from sheer weariness.
她纯粹是因为劳累而晕倒的。

Overwork brought on insomnia.
这度劳累引起失眠。