If you are acquainted with something, you know about it because you have learned it or experienced it.
近义词
familiar
双语例句
例：
He was well acquainted with the literature of Latin America.
他对拉丁美洲文学了如指掌。
2.?认识的
If you get or become acquainted with someone that you do not know, you talk to each other or do something together so that you get to know each other. You can also say that two people get or become acquainted.
双语例句
例：
At first the meetings were a way to get acquainted with each other.