Radiospectrum
射频频谱
🗣️ 情景例句
Looks like we should've bought a bigger one.
看来我们应该买一件大些的。
Have you finished yet?
你做完了吗？
Mr Hu stood at the starting line. All the runners got ready to run.
胡先生站在起跑线上。所有的运动员都做好了起跑准备。