bum [bʌm]

以下由轻松背单词网站提供

n.臀部；流浪汉，乞丐；vt.乞求，乞讨

the part of the body that you sit on; bottom

A man pinched her bum on the train so she hit him. 在火车上有人捏她屁股，她打了那人。
The penniless man had to bum a ride home. 那个身无分文的人只好乞求搭车回家。