我注意到会议室里有几张不熟悉的面孔。

I noticed several ___unfamiliar faces in the meeting room.

他的名字对我来说很陌生。

His name was ___unfamiliar to me.

另一方面，你可能不喜欢一些菜肴，因为它们对你来说可能不熟悉。

On the other hand, you may not like some dishes, because they may be ___unfamiliar to you.