Duplexer
[电] 双工器
🗣️ 情景例句
Right.
对。
A man knows his companion in a long journey and a little inn.
路遥知马力，日久见人心。
All the stories of families, heroes, wars and journeys are passed down from generation to generation.
所有家族、英雄、战争、旅行的情况都是世代口传的。