and we are working with the settlement community to try to ease the pain involved because we know it is difficult for them,".

VOA: standard.2010.01.03

We know pain is--of others is aversive for chimpanzees and we know this in certain ways.

我们知道黑猩猩也讨厌其他黑猩猩的痛苦,这是非常确定的。

耶鲁公开课 - 心理学导论课程节选

And I don't know. It really does the pain.

我也不太清楚，真的很难对比。

类似常春藤 - SpeakingMax英语口语达人

Dr.Vallenas says many mothers are discouraged from breast-feeding because they do not know how to get their baby to latch on properly to the breast's nipple, or because they suffer pain and discomfort.

VOA: standard.2009.08.01

These are the men who know me best, the men who share my values, men who traveled with me, studied with me, have been though pain and happiness with me, men who know my voice" Feiler's wife Linda embraced the idea, and together, they devised some guidelines for whom to ask.

VOA: standard.2010.06.19