Radiospectrography
无线电频谱学
🗣️ 情景例句
Welcome aboard!
欢迎加入我们的行列！
Did you hear that we would have a holiday next work?
你有没有听到下周可以休假的事？
in the end, is reabsorbed into the great ocean of life.
但最终又被重新融进生命的大洋。