I feel like I’m just wasting my breath trying to explain things to him.

我觉得跟简直是白费唇舌。

It will save the student from wasting his time in exercises.

可使学生不至于浪费在做练习上。

Instead of wasting time, she employed herself in reading.

她专心致志地看书, 不白白浪费。

Look, you whiney crybaby, we're not wasting the element of surprise to mollify your nyctophobia.

听着，你个瞎抱怨的爱哭鬼，我们可不会为了迁就你的黑夜恐惧症而浪费出其不意一要素。

I wondered darkly if I was wasting my time.

我忧郁地想我是不是在浪费。

Their team was penalized for intentionally wasting time.

们的球队因故意拖延而受罚。

There's no point in wasting time.

耗没用。

I don't approve of wasting time.

我不赞成浪费。

Hurry up, we're wasting time.

快点儿, 我们别再浪费了。

The author has reviewed the promoted effect of testosterone and androgens on the improvement of human immune function,sexual hypoesthesia,wasting syndrome and depression and the treatment of AIDS.

本文主要综述睾丸酮改善人体免疫功能、性功能、消瘦和抑郁的正向作用及对艾滋病的治疗作用。