Don't waste time chatting!

别浪费时间闲聊了！

youdao

Don't waste time on people who cheat you.

不要把时间浪费在欺骗你的人身上。

youdao

Don't waste time exploring skill areas where you have little competence.

不要浪费时间去探索你没有什么能力的技能领域。

youdao

Know what you've already tried, don't waste your time trying it again.

记住你已经尝试过的错误，不要再次浪费你的时间。

麻省理工公开课 - 计算机科学及编程导论课程节选

I stress it in particular because I know you're all going to get into this stage; you've got a problem set due in a couple of hours, you're still writing the code, you don't want to waste time, and I'm going to use quotes on "waste time", doing those extra things to do the defensive programming, you just want to get the darn thing done.

我特别强调了这一点,因为我知道你们都会慢慢成为程序员;,你在写代码过程中造成了一系列的错误，你还在写代码，你不想浪费时间，我想把“浪费时间“用引号圈起来，浪费时间来做因为防卫性程序设计，而带来的这些额外的事情,你只想赶紧把程序写完，这不是一个好习惯，因为当你做完回头。

麻省理工公开课 - 计算机科学及编程导论课程节选

For dresses and shirts, don't waste time looking around, but be prepared to spend money.

WSJ: Tina Gaudoin on Style: Winter Whites

"Don't waste time and money putting up these hoardings that may be understood only by elite 2% of the people, and that too not those who tend to walk on the streets too much, " resident Sanjiv Kapoor wrote on Calcutta traffic police's Facebook page.

BBC: Beatles' Abbey Road cover in Calcutta traffic campaign

Its legendary operational drill entails everything from training drivers to hold their keys on a pinky finger so they don't waste time fumbling for them in pockets to asking employees to clean off desks at day's end so they can be clear for takeoff in the a.m.

FORBES: Logistics in Brown