Acknowledger
n. 认收开关；了望装置
🗣️ 情景例句
OK, Robbie, maybe you should watch him. Robbie
也许你得看着他点。
Welcome to our factory.
欢迎到我们工厂来。
On her way home she bought a new pen at a shop.
回家路上，她在一家商店买了一支新钢笔。