关键是你应该为你已经拥有的感到高兴，而不是冒着失去它的风险变得贪婪和试图得到更多。

The point is that you should be happy with what you already have and not risk losing it by being greedy and trying to get more.

youdao

太多的压力会阻碍你发挥出最好的能力，所以重要的是不要让它失去控制。

Too much stress can stop you working to the best of your abilities, so it's important not to let it get out of control.

youdao

我们能从这位老人身上学到的是：如果你因为一件不成功的事情失去了很多，那就让它过去，继续前进。

What we can learn from the old man is this: if you've lost a lot over something that doesn't work, let it go and move on.

youdao

And I'm going to call this the you can break even law; you can break even law.

我叫它,你能保本定律“,你不会失去能量。

麻省理工公开课 - 热力学与动力学课程节选

If you want to lose electron, you have to find someplace for that electron to go.

如果你想要失去一个电子，你就必须为它找到一个可去的地方。

麻省理工公开课 - 固态化学导论课程节选

Why are you unable?

你为什么会失去它？

耶鲁公开课 - 死亡课程节选