useful work

基本解释

This is useful work.
这是有益的工作。
The carpenter--seeks to do useful work, and finish it well.
木匠--寻求做有用的工作并能把它完成得很好。
The invention of the laser provided scientists with a stronger source of light and a push that could do useful work on Earth.
激光的发明给科学家们提供了一种强大的光源，同时也是地球上的一种能够产生有效功的推力。

"What we've proven to be useful and what does work is having a person in a stressed state, and then reducing that stress because it's that contrast is what motivates a person to cooperate, what motivates a person to start talking.
One useful thing about separating receptors into types or families is that we found that many different receptors work by the same basic underlying mechanism.
我们将受体进行分类的一个依据,就是我们发现,很多受体有相同的作用机制
耶鲁公开课 - 生物医学工程探索课程节选
And I thought it would be useful And I thought it would be useful to have to have opportunities to work with students opportunities to work with students about the issues about the issues outside the classroom outside the classroom that might either inform or impede that might either inform or impede their development their development as scholars.
我觉得，如果有机会与学生交流,我觉得一个有用的办法,会很有益,是创造机会和学生们一起处理,与他们讨论课外的问题,课外一些可能会影响或阻碍,这些问题可能促进或者阻碍,他们作为学者的发展的问题。
普林斯顿公开课 - 人性课程节选

Harness a few thousand of these minute bursts of energy, and some useful work could be done.
ECONOMIST: Micromachines: The engines of Lilliput