当你说出来的时候，不要想当然地认为两者之间的联系很明显。

When you do speak up, don't assume the link will be clear.

youdao

大声说出来。当你不自信的时候，你不能做好你想做的事情。

Speak loudly. When you are not confident, you can't do well what you want to do.

youdao

也就是说，如果你可以解出来或者去除掉这些变量的点，就是临界点，当你有这样的问题要解决的时候，我们找到临界点了，它们一定是最大值点或者最小值点吗？

That means if you were able to solve and eliminate the variable that would be a critical point. When you have the same problem, as we have critical points, are they maxima or minima?

youdao