Radioecho
无线电回波, 无线电反射信号
🗣️ 情景例句
Where's the dressing room?
试衣间在哪儿？
Mr. Jones is the author of the controversial book.
琼斯先生写出了一本有争议的书。
Some friends of my family had this irritating habit.
我家有几个朋友就有这有令人恼火的习惯。