求翻译:550-5.1.1 double-checking the recipient's email address for typos or是什么意思?待解决 悬赏分:1 - 离问题结束还有 550-5.1.1 double-checking the recipient's email address for typos or问题补充:匿名 2013-05-23 12:26:38 550 5.1.1 校对的收件人的电子邮件地址的拼写错误或热门同步练习...