Radiospectrum
射频频谱
🗣️ 情景例句
We have a live-in doctor if there's a problem I can't handle.
假如我遇到不能解决的问题 ，我们还有位驻家医生。
He said he would rather not tell his age.
他说他不愿告诉年龄。
So what should you do? We'll assume that you have sorted out the basics --
那么你该怎么做呢？我们假定你已把基本情况弄清楚了，