有一个方便的键盘快捷键可用，不必滚动到屏幕的顶端。

There is a handy keyboard shortcut to save you having to scroll up to the top of the screen.

《柯林斯英汉双解大词典》

你施加一个力，材料就会抵抗它，直到你有一个足够大的力来打破化学键。

You apply a force and the material will resist it until you have a force great enough to break the chemical bonds.

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钢琴有两种类型的键，白键和黑键。

Piano has two types of keys, the white keys, and the black keys.

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So, if we hybridize just these three orbitals, what we're going to end up with is our s p 2 hybrid orbitals.

我们会看到现在有3个未配对的电子，可以成键。

麻省理工公开课 - 化学原理课程节选

So we can think about now doing bonding, and now we have four equal orbitals with one electronic each.

我们现在可以考虑成键了，现在我们有4个等价的轨道，每个上面有1个电子。

麻省理工公开课 - 化学原理课程节选

That is to say brick work in high temperature furnaces, maybe tiles on the Shuttle, to resist high temperatures because of the high internal bonding.

它在能够承受高温炉的温度，例如瓷砖，能够耐受高温,因为它们有强的内部键作用。

麻省理工公开课 - 固态化学导论课程节选