Acknowledger
n. 认收开关；了望装置
🗣️ 情景例句
Don't waste your breath trying to persuade them, they'll never listen.
别白费口舌规劝他们，他们不会听你的话。
I would like to ask you a question.
我想问你一个问题。
We had roast beef and potatoes.
我们吃的是烤牛肉和土豆。