What was there to count? There was only an empty yard and the blank side of the house seven meters away.

VOA: special.2009.08.01

That's what Sternberg calls empty love.

以上为空洞式爱情。

耶鲁公开课 - 心理学导论课程节选

if we move up one of our electrons into an empty p orbital, what were going to see is now we have three unpaired electrons that are ready for bonding.

教授：嗯，如果我们把其中,一个电子填入p轨道。

麻省理工公开课 - 化学原理课程节选

I'm going to give a name to that. And what you see there is I'm going to call divisors initially an empty tuple, something has nothing in it. Right here. And then I'm going to run through the same loop as before, going through this set of things, doing the check.

你们可以看到这里,我初始化一个空的元组,名为divisiors，这里，然后我会去运行,跟以前一样的循环，遍历这个集合内的东西,然后做检查，现在我要做的是，每次我找到了一个除数我要把它收集起来。

麻省理工公开课 - 计算机科学及编程导论课程节选