Radiospectrography
无线电频谱学
🗣️ 情景例句
No, not yet. What about you?
不， 还没有。你呢？
What did you ask him?
你问他什么？
Open your mouth, Jimmy.Show me your tongue.Say, Ah'.
把嘴张开，吉米。让我们看看你的舌头。说“啊——”