Acknowledger
n. 认收开关；了望装置
🗣️ 情景例句
Well, it was great to see you again. Let's not wait this long next time.
可以再见到你真是太好了，希望我们下次见面不用等这么久。
I think she works much too hard.
我认为她未免太过辛劳了。
No, look, it says Closed. It's not open this morning.
不对，看！写着“关门”的，今天早上不开。