Reciprocator
n. 报答者, 往复式机器\\n[计] 倒数器
🗣️ 情景例句
Give it a try.
试试看。
A light heart lives long.
心胸开朗，使人寿长。
It's against the rules to handle the ball in soccer.
在足球中以手触球就是犯规。