1. When he moved he left instructions for his letters to be sent on to his new address.
    他搬走时吩咐别人把他的信转寄到新地址。

1. 转交：send in 交上去,递送 | send on 转交 | I can send one for you to try. 我们可以寄个给你试用.

2. 预送：send off 寄出 | send on 预送 | send out for 派......去取

3. 转送：send forth 发出 | send on 转送 | send 发送

4. 转寄(信件)到新地址, 转送(信件)：send off发(信, 包裹), 发送(信息(给...送行 | send on 转寄(信件)到新地址, 转送(信件) | send out发出, 发;发出(光亮等), 长出(嫩芽等)

1. 转寄，转发,转达(尤指文件)
    If you send on something you have received, especially a document, you send it to another place or person.

    e.g. We coordinate the reports from the overseas divisions, and send them on to headquarters in Athens.
           我们整理了海外各部门的报告然后再将其转发给雅典的总部。

1. send or ship onward from an intermediate post or station in transit

    e.g. forward my mail

    Synonym: forward