Promise me you will not waste your time.

向我承诺你不会浪费你的时间。

《柯林斯英汉双解大词典》

Let's not waste an opportunity to see the children.

我们别错过看看孩子们的机会。

《柯林斯英汉双解大词典》

"Number one is to not waste food," Wagner Riddle, a scientist from Canada, said.

“首先是不要浪费食物。”加拿大科学家瓦格纳·里德尔说。

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"I will not waste time with those who have made the calculation that it's better politics to kill this plan than to improve it.

VOA: special.2009.09.12

The ones who would conserve energy, that is they were sedentary when possible, other then when they had to go get food would again not waste their calories but would save them and contribute to the gene pool.

那些保存能量的人,那些能躺不坐,能坐不站的人,除非必须再次寻找食物,否则是绝对不会浪费能量的人,也是对基因库有贡献的

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

So I'm not going to waste my time there.

所以我可不打算在那儿浪费时间。

I'm going实战 - SpeakingMax英语口语达人

He did not waste the opportunity and comfortably sealed victory in one hour and 21 minutes.

BBC: Andy Murray victory seals place at World Tour Finals

"The way we look at it, you can waste energy or not waste energy, " Boesel said.

CNN: Pedal power is fueling green awareness

But the summiteers should not waste too much time on self-congratulation as problems abound.

CNN: FIXING THE WORLD