所有已知的、正确来源的电子邮件地址，如客户端和供应商。

All the E-mail addresses of known, good, sources, such as client and suppliers.

youdao

所有已知的、正确来源的电子邮件地址，如客户端和供应商。

All the E-mail addresses of known, good, sources, such as client and suppliers.

youdao