如果在上游发现了问题，或者如果我们停止生产产品，由于在制品库存，报废率会更高。

If something wrong is found upstream, or if we stop building the product, the scrap will be higher due to the in-process inventory.

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或者如果我们看键的强度的话，它实际上比单键更强，而比双键更弱。

Or if we look at how strong it is, it's actually stronger than a single bond, but weaker than a double bond.

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万一我病了，万一我死了，或者如果我们只是对彼此变得冷漠了，她将会怎么样呢？

What would happen to her in case I was ill, in case I died, or if we simply grew cold to one another?

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if you've got a hill or valley and there's a cart on wheels it's going to go down to the bottom.

如果我们有一座山或者山谷，并且,有一个有轮子的车，这辆车会自动滑到底部。

麻省理工公开课 - 热力学与动力学课程节选

We can never just have it there before us or, as I say, if we can--if we can--it's a very, very difficult act of concentration.

我们永远不能只面对着它，或者，要我来说，如果我们可以的话，那将需要高度集中注意力，这是很难的。

耶鲁公开课 - 文学理论导论课程节选

So let's take two cases of shielding if we're talking about, for example, the helium, a helium nucleus or a helium atom.

所以我们来对屏蔽举两个例子,如果我们在讨论氦，举例来说一个氦原子核或者氦原子。

麻省理工公开课 - 化学原理课程节选