Radiospectrography
无线电频谱学
🗣️ 情景例句
Did you know I can type almost 60 words per minuter?
你知道吗，我能每分钟打60个字。
I think it's going to crack soon.
我认为它将很快杯打碎。
No, thank you. Tom.I've already had lunch.
不，汤姆，谢谢。我已经吃过饭了。