Subtracts
v. 减, 扣除, 做减法( subtract的第三人称单数 )
🗣️ 情景例句
You'll sleep sounder for it.
你会因此而睡得更加酣畅。
We can't draw well.
我们不能画那么多。
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）