n.1. （常与of连用）中间；中央；中部；中心Please stand in the middle of the room.请站在房子中间。
In the middle of the night, two boys woke up and began shouting.在半夜里，两个孩子醒了并大声喊起来。
I woke in the middle of the night.我半夜醒了。
2. 腰部He's getting fatter round the middle.他的腰部变粗了。
He is no less than fifty centimetres round the middle.他的腰围不小于五十公分。