answer back mechanism

例句：

1. 1. The new phone has an answer back mechanism that allows users to quickly respond to messages.
   这款新手机有一个回音机制，允许用户快速回复信息。
2. 2.In the game, players need to answer back to the computer's questions to progress.
   在游戏中，玩家需要回答计算机的问题以获得进展。
3. 3.The teacher used a questioning technique to encourage students to answer back and engage in discussions.
   老师采用了提问技巧来鼓励学生回答问题并参与讨论。