练习瑜珈最好空腹进行，因此在瑜珈课开始之前的两个小时内都不要进食。

It's best to practice on an empty stomach. So, no food for a couple of hours before class.

youdao

我几乎忘了-我们需要准备一个在发布之前的两个星期提出的系统设计规范。

I almost forgot - we need to prepare a system design specification to distribute in advance of the presentation in two weeks.

youdao

但在那之前的两个小时，门口已经有数百人在排队等候领取接种所需的编号卡了。

But two hours before the centers opened, there were already hundreds of people waiting in line for the numbered CARDS that were needed to get the vaccination.

youdao

We have no evidence, and I mentioned this before, that there was a particularly close relation between these two young men.

我之前提到过，我们没有证据,去证明这两个年轻人之前有着如何亲密的关系。

耶鲁公开课 - 弥尔顿课程节选

All right, so unlike the other game, the two examples of coordination games we saw so far were really pure coordination problems.

没错,这和之前的博弈不同,目前为止我们看到的前两个案例,是纯粹的协调博弈

耶鲁公开课 - 博弈论课程节选

I don't know if you know how a spark plug works, but for the electrical current to fly into operation in a spark plug, the two points of contact have to be gapped.

我不知道你们是否知道,火花塞是怎样工作的，在电流通入火花塞中使它运转之前，两个接触点之间需要有空隙。

耶鲁公开课 - 文学理论导论课程节选