Htls
abbr. high torque low speed 高扭转力低速
🗣️ 情景例句
Yes, I did.
是的， 我看过了。
What are you interested in?
你对什么比较感兴趣？
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）