1) He is at home with this subject.
他熟悉这一学科。
2) This was a handwriting he did not know.
这笔迹他不熟悉。
3) He is familiar to me.
我熟悉他这个人。
4) The place is strange to me.
这地方我不熟悉。
5) I have no acquaintance with this book.
我不熟悉这本书。
6) He knows a lot about the pop music scene.
他熟悉流行音乐。
参考词条