Sumidero
[西]落水洞, 封闭洼地
🗣️ 情景例句
Nothing.
没有什么。
What do you do for relaxation?
你做什么消遣？
Fortunately, a pilot saw the signal and sent a message by radio to the nearest town.
幸运得很，一位飞行员看到这个信号，用无线电给最近的城镇发了报。