Singingly
adv. sing的变形
🗣️ 情景例句
We've got a movie.
我们知道是一部电影。
Thank you for your kind cooperation.
谢谢您的合作。
a trough (the lowest point), a height (the vertical distance from the trough to the crest),
波谷（最低点）、浪高（从波谷到浪峰的垂直距离）