1.Bill! Honestly, you can be such a grouch sometimes.

比尔，老实说，有时你就这怨！

2.I worried so much that I changed from a regular guy into an old grouch.

我非常担心， 以至于我普通变成了老脾气。机翻

3.It caused John Palmer to turn " from a regular guy into an old grouch" , and almost wrecked his home.

这让约翰帕尔默“普通变成了发牢骚的老家伙” ，并且几乎毁了他的家。机翻

4.A " grouch" (grouch) is a person who's never happy, a person who's always mad or upset, a person who's always in a bad mood.

“grouch” （发牢骚）是永远不快乐的，总是生气或心烦意乱的， 总是心情不好的。机翻