Stop dawdling and do something useful!

不要挨时间了， 做点有益的事吧！

《新英汉大辞典》

Do not idle about like this and do something useful.

别再这样闲混下去了，做些有益的事吧！

《新英汉大辞典》

"I want to do something useful," he said.

“我想做一些有用的事儿，”他说。

youdao

The other thing about it is that you could make lots of things that are new but generally you think of engineers as making things that are not just new but they're useful, that they do something that needs to be done, and that they do something that improves life, the quality of life of people.

另一个区别是,科学家会做很多很多新鲜玩意儿,而一般来讲,工程师做的东西不只是新奇,它们还很有用,他们做那些需要做的东西,他们做的东西能够提高,人类的生活水平和生活质量

耶鲁公开课 - 生物医学工程探索课程节选

I like" is a useful pattern for firming that yes, you want to do something.

I like” 是一个很有用的句型，它可以用来强调你想要做的事情。

I like课堂 - SpeakingMax英语口语达人

Maybe Janet Reno's successor will do something useful and break up the local phone companies.

FORBES: Digital Rules

Having assembled and tested the machinery, he then wanted to do something useful with it.

ECONOMIST: Synthetic biology: Expanded vocabulary | The

But if we really want to do something useful, we should do more than help the hard cases.

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