问题 提问于 2014年5月29日
When I send email, how do I ask for a receipt to tell me that it has been
A. been received
and
B. read??
较早的帖子,发布于 2014年5月29日。 其中的信息可能已经过时。
本帖暂无中文翻译,以下为英文原文。
When I send email, how do I ask for a receipt to tell me that it has been
A. been received
and
B. read??
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