它在缺省情况下是INBOX：标准imap主邮箱。

This is INBOX by default: the standard IMAP main mailbox.

youdao

去年，我使用了公司的电子邮箱作为Google Apps的主邮箱账户。

For the last year, I've used a work email address using Google Apps as my main email account.

youdao