The ego serves a very useful function, and it's a mistake to try to tune it out.

自我可以提供一些很有用的功能，试图把它完全丢掉是一种错误。

youdao

This activity is very useful if you need to provide a cancellation function in your process.

如果您必须在流程中提供取消功能，那么该活动将非常有用。

youdao

The method is a very fast and stable refinement technique that makes for the nearest merit function minimum, and it is particularly suitable for the adjustment of an already useful design.

详细介绍了非线性单纯形方法的算法思想，非线性单纯形方法是一种能够快速、稳定地寻找到评价函数最小值的优化算法，特别适合于对已有的设计进行调整。

youdao

It turns out we can express all these functions in terms of G, G we wouldn't need to choose G, but it's a very useful function to choose.

最终我们能把所有的这些函数,用自由焓G表示出来，我们没有必要选择，但是这个选择很有用。

麻省理工公开课 - 热力学与动力学课程节选