Pinger
n. 声脉冲发送器, 铃声定时器
🗣️ 情景例句
Thanks, Dad.
谢谢， 爸爸。
The chemist is testing enzymes.
化学家在试验着酶。
The drunk, however, seemed quite sure of himself.
当公牛逼近他时，他踉跄地住旁边一闪，牛扑空了。