She entered the station twenty mintues before the train was due.t_英语解答

She entered the station twenty mintues before the train was due.
twenty minutes before 后为何可加从句 before这里是副词还是连词

人气：444 ℃　时间：2020-05-20 15:35:37

解答

连词前面一句话 before 后面一句话 .表达前后时间关系