例句：
One house is attached with an underground garage.
这个房子与地下车库相连接。
The school has a library attached to it.
This学校后面附有一间图书馆。
Some people put on weight in middle age due to constant exercise.
一些人由于经常运动，到了中年体重往往会上升。
He was standing at the center of the room.
他坐在房间的中间。
