Pinger
n. 声脉冲发送器, 铃声定时器
🗣️ 情景例句
You are under arrest.
你被捕了。
We must have your LC at least one month before the time of shipment.
我们必须在船运前一个月收到你们的信用证。
The Australian seasons are the opposite.
澳大利亚的季节正好相反。