Radiospectrography
无线电频谱学
🗣️ 情景例句
And now to see the end of the football game.
现在去看看足球赛的最后一段。
Let me give you a hand.
让我来帮您一下吧！
He could also hear night insects and the sound of waves on the shore.
他还能听到夜晚里昆虫的叫声和波浪拍击岸边的声音。