You must not send bank notes, currency notes, and some valuable things because there is no special handling in the post.

你不能寄钞票、纸币和一些贵重物品，因为邮局没有特别处理。

You must not send bank notes, currency notes, and some valuable things because there is no special handling in the post. Recorded delivery mail is carried with the ordinary unregistered post.

您一定不要寄纸币、纸币和一些贵重物品，因为邮寄中没有特殊处理。挂号投递邮件与普通的未挂号邮件一起运送。