"buttocks" in Chinese (Simplified)
臀部臀
Definition
你坐下时身体后方的两个圆形部位，位于臀部区域。
Usage Notes (Chinese (Simplified))
属于正式或医学用语，比口语如“屁股”更为中性和礼貌。常用于医疗、解剖或正式场合，日常交流较少使用。
Examples
The doctor asked me if my buttocks hurt when I sit.
医生问我坐下时**臀部**是否疼痛。
She fell and landed on her buttocks.
她摔倒时坐在了**臀部**上。
Sit on your buttocks and stretch your legs forward.
坐在**臀部**上，把腿向前伸展。
After cycling for an hour, my buttocks were sore.
骑自行车一小时后，我的**臀部**很酸痛。
Some people exercise to tone their buttocks.
有些人锻炼是为了塑造**臀部**线条。
He slipped on the ice and bruised his buttocks.
他在冰上滑倒，摔伤了**臀部**。