美風的發音和語調都灰常好，看來忙並不影響你進步。cooperation是不是off?

來源: bingli 於 2012-05-15 17:47:19 [博客] [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.