Undersetting
v. 底流, 暗流, 与海面流向相反的潜流( underset的现在分词 )
🗣️ 情景例句
I'll take this green sweater.
我买这件绿毛衫吧。
He brushes his teeth.
他在刷牙。
This increases their air-resistance and reduces the shock of impact when they hit the ground.
这样就加大了空气阻力，并减少了它们着地时冲击力带来的震动。