Acknowledger
n. 认收开关；了望装置
🗣️ 情景例句
I'm afraid not. We don't generally accept a letter of credit.
恐怕不行，我们一般不采用信用卡。
Could I speak to you, please?
我可以跟你谈话吗？
Our dog, Rex, used to sit outside our front gate and dark.
我家的狗雷克斯，过去常坐在大门外面叫。