我们做了很多年生意了，你应该对我们的信用有信心，如果你可以接受承兑交单或者付款交单，会对我有很大的帮助。

We've done business for years and you should have some faith in our credit. It would help me greatly, if you could accept D/A or D/P.

youdao

签定原单之前不要试图进行交叉销售或者追加销售。

Do not attempt to up-sell or cross-sell until you have fulfilled the first order.

youdao

第一项限制是使用的格式，它必须是单条语句或者块。

The first restriction is the actual format, which must be a single statement or block.

youdao

Okay, so which is worse: polyunsaturated fat, monounsaturated fat, or both are pretty good for you?

请回答哪个更有害,多不饱和脂肪,单不饱和脂肪,或者是两个都对健康有益

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

We have either single atoms or molecules consisting of small numbers of atoms.

单原子或者分子,由很多很小的原子组成。

麻省理工公开课 - 固态化学导论课程节选

So now that we can do this, we can compare and think about, we know how to consider wave functions for individual electrons in multi-electron atoms using those Hartree orbitals or the one electron wave approximations.

现在我们可以做这些了，我们可以对比和考虑，我们知道如何用哈特里轨道,或者单电子波近似去考虑,多电子原子中的单个电子波函数,所以对于我们研究了。

麻省理工公开课 - 化学原理课程节选