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

VOA: standard.2009.09.10

So, I'm not going to waste your time by asking what happens if you put it in.

我不会问你们把式子带进去以后怎么算,这完全是浪费时间

耶鲁公开课 - 基础物理课程节选

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

Chewing takes time and energy which a dinosaur could not waste.

VOA: special.2010.06.04

And I am not going to take the time to solve it because I think that is a waste of class time, but those are the three unknowns.

但我并不打算把解这几个方程,我觉得那会是浪费课堂时间，但那是三个未知式。

麻省理工公开课 - 固态化学导论课程节选

I'm not going to waste my time there.

我可不打算在那儿浪费时间。

I'm going实战 - SpeakingMax英语口语达人