送信人

例句：

1. 1. The messenger delivered the letter to the post office.
   信使把信送到了邮局。
2. 2. He was a trusted messenger who always delivered messages on time.
   他是一个值得信赖的信使，总是准时送达信息。
3. 3. The messenger had to deliver the package to the customer's home address.
   信使必须把包裹送到客户的地址。