Radioecho
无线电回波, 无线电反射信号
🗣️ 情景例句
They don't have room service at Old Country Inn. Old Country Inn
没有房间服务部。
Reason is the guide and light of life.
理智是人生的响导和光辉。
There were coins everywhere.We looked for them, but we could not find them all.
到处都是硬币。我们虽然找了，但没有把它们全部找到。