If you can think "Life is more beautiful and your time to enjoy is less", then you won't waste your time in useless clashes and issues.

如果你能够想想生活是美好的而生命短暂，那么你就不会浪费你的时间在那些无用的冲突和问题上了。

youdao

If you don't have a compiler that can produce code to take advantage of the underlying processor architecture and instruction set, then the fastest machines will be useless.

如果您没有可以生成代码来利用底层处理器架构和指令集的编译器，那么最快的机器也将是无用的。

youdao

If all we want are jobs, we can create any number — for example, have people dig holes and then fill them up again or perform other useless tasks.

如果只是想要工作的话，我们可以人为的创造出大把的就业机会——例如，找一帮子人来挖洞，然后再填上，这样无用的工作有的是。

youdao

And then remember how you solve this 'cause otherwise completely useless exercise.

记住我是怎么解决这个问题的，否则就是一次,无意义的演练了，对吧。

哈佛公开课 - 计算机科学课程节选

But the problem is if you use the word "Language" impossibly, incredibly broadly, then from a scientific point of view it becomes useless to ask interesting questions about it.

但问题是,如果你无限宽泛地使用"语言"一词,那么从科学的角度来看,探究语言就变得毫无意义了

耶鲁公开课 - 心理学导论课程节选

Then it is useless as a tool for improving performance.

FORBES: Three Critical Steps to Review Your First Quarter Results

When we talk about dialogue for an entire millennium then it may be useless and fruitless to continue to lie to nature the way we do.

UNESCO: Dialogue among civilizations: Address by Alexandre Yakovlev (Russian Federation)

But then again he has been absolutely useless everytime there has been any wet weather.

BBC: SPORT | Motorsport | Motorbikes | Melandri's back on track