名詞 sender:

1. someone who transmits a message
   同義詞：transmitter
2. set used to broadcast radio or tv signals
   同義詞：transmitter

1. In data communications, the transmission by a receiver of acknowledge characters as an affirmative response to a sender.
   數(shù)據(jù)通信中，由接收方向發(fā)送方傳送應答字符作為肯定回答的傳輸過程。
2. A batch of mail dispatched at one time by a sender.
   由郵遞員同時分送的一批郵件
3. The parcel was returned to the sender because the directions were incorrect.
   包裹因姓名地址有誤而退給了寄件人。