Similarly, you have to use your own good judgment to determine the correct size of a class.

类似地，您必须有自己的确定正确类大小的良好判断。

youdao

I only fear that the sort of cautiousness, to which you, I imagine, have been alluding, is merely adopted on his visits to his aunt, of whose good opinion and judgment he stands much in awe.

我只怕他虽然收敛了一些(你大概就是说他比较收敛了一些吧)事实上只不过为了要在他姨母面前做幌子，让他姨母看得起他，说他的好话。

youdao

When you know both that it is good and that you have too much, then you can trust your judgment on how much is just enough.

只有当你既知道这是个好事并了解你已经做过头了，你才会对什么是适量做出正确的判断。

youdao