我的邻居是个脾气暴躁的老头，对什么都抱怨。

My neighbour is a ___grumpy old man who complains about everything.

别去打扰大巴司机；他今天心情不好。

Don't bother the coach driver; he's ___grumpy today.

经过一个不眠之夜，她在早会上脾气暴躁是可以理解的。

After a sleepless night, she was understandably ___grumpy in the morning meeting.