Radio principle
[电] 无线电原理
🧩 词语组成解析
🗣️ 情景例句
What's the point of your argument?
你主张的论点是什么？
I asked him to paint it for me, but he wouldn't
我请他帮我油漆，但是他不肯。
So was born the echo-sounding apparatus, now in general use in ships.
这样就产生了目前各种船舶上普遍应用的回声探测仪。