Scafing
火焰清理
🗣️ 情景例句
I have good news and bad news, which do you want to hear first?
我有好消息和坏消息，你想先听哪个？
Experience is a school from which one can never graduate.
经验无止境。
and a period (which is the time it takes a wave crest to travel one wave length).
和周期（浪峰走过一个波长所需的时间）。