1.The old man is a grumpy elder.

1.这老人是脾坏的长。

2.The grumpy man found fault with everything.

2.性情乖戾的人对什么都要找岔。

3.She's very grumpy when her tooth aches.

3.她牙痛时脾躁。

4.Don’t be so grumpy and cynical about it.

4.不要为此这么生,这么愤世嫉俗。

5.Terry was grumpy and unsociable.

5.特里脾坏，也不爱交际。