Some songs are funny while others are edgy or sad.

VOA: special.2010.06.04

And unfortunately some chemicals there that fell together there and ended up causing bit of an explosion, which was a sad event.

很不幸,有些化学药品跌落在了一起,结果引起了爆炸，十分遗憾。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

Although it would make me very, very sad to discover this, I suppose it's possible some of you have such bad lives that moving on to the experience machine would be a step up.

虽然我会很难过，我想你们中有些人一生不顺,连接上体验机器可能是个好转。

耶鲁公开课 - 死亡课程节选

He describes his reaction to the arrests. "Happy because I think the parents and the community took the right actions but sad because members of the Muslim community, kids that I might have crossed paths with at some time, got into that false ideology,".

VOA: standard.2009.12.20