Radioecho
无线电回波, 无线电反射信号
🗣️ 情景例句
We'll be looking for your book.
我们会去买你的书。
Leaves are falling.
叶子落了。
One wants to meet like-minded collectors, to get advice, to compare notes, to exchange articles, to show off the latest find.
收藏者要会见情趣相投的收藏者，以获取教益，交流经验、交换收藏品，炫耀自己的最新收藏。