那些必须在销售季节之前就确定新产品要生产多少的公司，往往会生产出销量好的产品，而其他产品则库存过剩。

Companies that must determine well in advance of the selling season how many units of a new product to manufacture often underproduce products that sell well and have overstocks of others.

youdao

如果你看，好，现在我们也可以确定，气相中的摩尔分数。

If you look and see, well, now we should be able to determine the mole fraction in the gas as well.

youdao

你不能确定它是好是坏，所以不愿去尝试。

If you're not sure if it's a good idea or not, you are reluctant to try it out.

youdao

In other words, only if we really are sure that the historicist act of reading is effective and works, if I know the meaning of a text. Well, fine.

换言之，要是我们确定,阅读这个历史主义行为是有效的，有用的，如果我知道文本的意思，那么，很好。

耶鲁公开课 - 文学理论导论课程节选

All right. So let's look at some of these wave functions and make sure that we know how to name all of them in terms of orbitals and not just in terms of their numbers.

好，让我们来看一下,这些波函数,并确定我们都知道,怎么用轨道,而不仅是量子数来命名它们,一旦我们可以命名它们。

麻省理工公开课 - 化学原理课程节选

Expected value is good and variance is bad because that's risk; that's uncertainty.

期望值越高越好,方差就相反,因为方差代表着风险,也就是不确定性

耶鲁公开课 - 金融市场课程节选