to spend time relaxing and doing very little

I spent the weekend just knocking around the house. 我周末就在家里闲呆着。

to spend a lot of time with someone

I used to knock around with him at school. 我过去在学校里常和他在一起。

to be in a place that is not exactly known or in various places especially over a long period of time

I'm sure I've got a copy of "Lolita" knocking around somewhere. 我肯定我有一本《洛丽塔》在什么地方。

He spent years knocking around the Far East before the First World War. 一战前他在远东漫游了多年。

to behave violently towards someone and hit them

Her husband used to knock her around. 她的丈夫过去常常虐待她。