a man was riding his bike while listening to an MP3while 起什么作用_英语解答

a man was riding his bike while listening to an MP3while 起什么作用

人气：416 ℃　时间：2020-09-03 14:37:25

解答

引导状语从句,表示“同时”.
句意可以看做是"一个男人,一边骑车一边听着MP3".