Ringback
回铃声（电话服务）；有回铃音的电话
🗣️ 情景例句
He is in trouble all the time.
他总是有麻烦。
How often do you go swimming?
你多久去游一次泳？
He did not see the bag until it was too late.
等他看见袋子时已经太晚了。