Take a sheet of paper and draw a line down the middle.
拿出一张纸，在中间画一条线。
She's the middle child of three.
三个孩子，她是老二。
The village has a history going back to the Middle Ages.
这个村子的历史可追溯至中世纪。
I should have finished by the middle of the week.
我在这周过半的'时候应该就能完成。
His eyes were fixed on a small house in the middle distance.
他凝视着不远处的一座小房子。