Original mail returned in the absence of the addressee.

收信人不在，原件退回。

Who is the addressee?

收件人是谁？

Let me fill out the order form. who is the addressee?

让我把表填好。收件人是谁？

Please fill in the names of the addressor and the addressee.

请填写收信人和寄信人的姓名。

As to agents or purported agents of the addressee, see 52 Comment C.

关于收件人的代理人或潜在代理人，请参阅第52节评论c。