- Well, this one was me having a little fun here. So play-- Cat meows ad nauseam.

这个有意思，如果打开-,猫叫的很难听。

哈佛公开课 - 计算机科学课程节选

It's hard to know again what the melody is or what the phrase is here.

还是很难听出,这里面的旋律或者乐句

耶鲁公开课 - 聆听音乐课程节选