" To kvetch" is an informal expression meaning to complain loudly and repeatedly.

“To kvetch” 是一种非正式的表达方式， 意思是大声反复抱怨。

The script for this episode was written by someone who never kvetches, Dr. Lucy Tse.

这一集的剧本是由一个从不抱怨的人写的，博士。露西谢。

Before we get started kvetching, though, I want to sing you a little song, and you've probably heard it before, so feel free to sing along, if you like.

但是在我开始发牢骚之前，我想唱一首歌，你可能以前也听过，如果你愿意的话可以一起唱。