alone是形容词，可以后面跟名词。

来源: WXCTEATIME 于 2022-03-23 10:38:38 [博客] [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.