源自于本地网络连接转发到外网，源地址替换指定的公网地址。

Source (SNAT). A connection originated from the local network is forwarded outside with source address substituted with specified address.

youdao

首先是中国不会把重要的内容放到外网，即使被攻击认为损失也不大。

It is China won't put serious content to outer net above all, although be thought by attack the loss is not big also.

youdao