be familiar with
US /bi fəˈmɪl.jɚ wɪð/
UK /bi fəˈmɪl.jɚ wɪð/

成语
1.
熟悉, 了解
to have a good knowledge or understanding of something
示例:
•
Are you familiar with this software?
你熟悉这个软件吗?
•
I am not very familiar with the local customs.
我对当地习俗不太熟悉。
在 Lingoland 学习这个单词