Acknowledger
n. 认收开关；了望装置
🗣️ 情景例句
He's got eyes like a cat.
他的眼像猫的一样。
We've been married for 2 years.
我们结婚两年了。
Visitors have been asked to keep the woods clean and tidy.
游客已被告知要保持树林的整洁。