背部的用法和樣例：
例句
-
他跌倒時背部受了傷。
He hurt his back when he fell. -
整骨醫士正給她治療受傷的背部。
An osteopath has been treating her injured back. -
她背部受傷，正在作一個月的牽引治療。
She's injured her back and is in traction for a month. -
他這一跌，背部 得很厲害。
He gave his back a nasty jar when he fell. -
他這一跌，背部 得很重。
He jarred his back badly when he fell. -
兇手把刀刺進她的背部，殺害了她。
The murderer killed her by thrusting a knife in her back.
