为什么、如何和什么时候我们孩子应该学第二语言？

Why, How, and When Should My Child Learn a Second Language?

youdao

你可以设定一个每日预算来控制如何和什么时候为每个广告付钱。

You can set a daily budget and control how and when to spend money for each AD.

youdao

他同时也使我认识到需要如何和什么时候采用新的方法，尤其是当他们需要一个新的思考方式时。

It also made me realize that we need to think about how and when we should adopt new methods, especially when they require a new way of thinking.

youdao

Now why--and here is the question why do we get this nervousness about the relationship between what I know and how I know it arising at this moment?

问题是,为什么那时候我们对,我知道什么和我如何知道的关系如此神经紧张？

耶鲁公开课 - 文学理论导论课程节选