交通是一個係統，中間的一些短板使整個係統效率大打折扣。

來源: solo1 於 2016-08-27 12:46:05 [舊帖] [給我悄悄話] 本文已被閱讀：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.