speed gain的用法和樣例：
例句
- In finish cutting we increase the speed and decrease the feed.
精切時(shí)，我們增加速度，減少進(jìn)給量。 - There are many swimmers at international level now to use the sculling position to develop speed and feel the water of the start and turn.
現在有很多國際水平的選手在出發(fā)和轉身時(shí)都采用小劃手來(lái)增加速度并獲得水感。
