grumpy old man 老爱抱怨的人；容易烦躁的人

The grumpy old man complained about the weather all day.

（这个爱抱怨的人整天抱怨天气。）

Every time I visit my grumpy old neighbor, he complains about how noisy the neighborhood has become.

（每次我去拜访我的邻居，这个爱抱怨的人都会抱怨邻里变得有多吵。）

The grumpy old man didn't like the new restaurant in town and complained about the quality of the food.

（这个爱抱怨的人不喜欢镇上的新餐厅，他抱怨食物的质量。）The grumpy old man grumbled about how the world has changed since his youth.

（这个爱抱怨的人抱怨自己年轻时的世界已经变了。）

The grumpy old man was always complaining about something, but nobody seemed to want to listen to him.

（这个爱抱怨的人总是抱怨什么，但似乎没有人愿意听他抱怨。）