Rdf
无线电测向器, 无线电定向仪, 无线电探问, 无线电测向
🗣️ 情景例句
What-are you doing?
你在做什么？
Cheerfulness and goodwill make labour light.
欢快与好意，劳动不觉累。
I'm from Changsha. What about you?
我是长沙的。你呢？