臀的

例句：

1. 1. She sat on the couch with her buttocks sticking out.
   她坐在沙发上，屁股翘得老高。
2. 2. He squatted down to tie his shoelaces.
   他蹲下来系鞋带。
3. 3. The dancer's hips swayed rhythmically as she moved.
   舞者随着节奏摇摆着她的臀部。