make acquainted with

例句：

1. 1. They wereacquainted with each other before the meeting.
   会议前他们彼此已经很熟悉了。
2. 2. The professor made us acquainted with the basic concepts of the subject.
   教授让我们了解了这个科目的基本概念。
3. 3. After living in a foreign country for a while, they became acquainted with the local customs.
   在外国生活了一段时间之后，他们熟悉了当地的风俗习惯。