Such a headache causes severe pain that goes away but returns later.

VOA: special.2010.03.30

And empathy has different definitions but we can simply view it as the feeling that your pain matters to me.

移情有几个不同的定义,但用简单的话来说就是,我不会对你的痛苦无动于衷。

耶鲁公开课 - 心理学导论课程节选

But if the balance of pain over pleasure-- If there's more pain than pleasure so that the balance is negative, that's worse than zero.

如果痛苦减快乐-,如果痛苦多于快乐,那么结果就是负的，比零小。

耶鲁公开课 - 死亡课程节选

That could cause me pain but it doesn't mean I'm going to be nice to you.

这会让我也感到痛苦,但这不代表我就要对你好。

耶鲁公开课 - 心理学导论课程节选

MATLAB But there's some things that are a real pain to do in MATLAB.

但是用,做东西是很痛苦的。

麻省理工公开课 - 计算机科学及编程导论课程节选