familiar with 熟悉的;友好的，过分亲密的，不拘礼节的

【例句】
It also doesn't require a new type of technology that people aren't already familiar with.
它也不需要一种人们还不熟悉的新技术。

Our aim is to allow student teachers to become familiar with the classroom.
我们的目标就是让实习教师熟悉课堂。