1、屁股的英语：butt，英 [bʌt] 美 [bʌt]。

2、他一屁股坐下来，打开了电视。He just plonked himself down and turned on the TV。

3、他们伴着音乐扭动屁股，有节奏地跳舞。They danced rhythmically, swaying their hips to the music。