Radiospectrography
无线电频谱学
🗣️ 情景例句
All work and no play makes Jack a dull boy.
只有工作没有娱乐会使人呆头呆脑。
What do you going to wear today?
你今天穿什么衣服？
Where's the Tomorrow Land Building?
未来世界大厦在哪儿？