官方，民间都缺少交流的渠道。改开后才有留学，学术交流，民间接触，境外旅游等。

来源: 老商于 2021-12-21 19:11:49 [旧帖] [给我悄悄话] 本文已被阅读：次

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