N-COUNT
送信者;通信员;信使
A messenger takes a message to someone, or takes messages regularly as their job.
例句
There will be a messenger at the Airport to collect the photographs from our courier...
机场会有一名信使从我们的递送员手中取走照片。
He gave the instruction for the document to be sent by messenger.
他下令由通信员送出文件。