Pinger
n. 声脉冲发送器, 铃声定时器
🗣️ 情景例句
Don't laugh. In the beginner's class,they give you a chance to rest between exercises.
别笑。在初级课程中你有机会休息。
Help! I'm being killed.
救人呀！我要被杀死啦！
The what?
什么？