屁股的一半的英文：
buttock
n. 臀部；船尾
v. 背摔
- The back section of the buttock on the outside may be sensitive to the touch.
这块肌肉在臀部后面外侧的部分，可以很容易就摸到。 - He buttocked his opponent onto the mat.
他把对手背摔在垫子上。 - Armor consisting of overlapping plates used to protect the buttocks
护臀甲由相互交迭的甲片构成的铠甲，用来保护臀部 - To expose one's buttocks in public as a prank or disrespectful gesture.
露出屁股以戏弄在公共场合暴露自己的屁股，作为一种恶作剧或不尊重的表示 - All at once he became conscious of a smart blow upon his buttocks
突然之间，他觉得他的屁股上很疼地挨了一下打。
