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

“To kvetch” 种非正式的表达方式， 意思大声反复抱。

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

这集的剧本个从不抱的人写的，。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.

但在我开始发牢骚之前，我想唱首歌，你可能以前也听过，如果你愿意的话可以起唱。