Bankswork
[采矿]正台阶回采
🗣️ 情景例句
He's so funny.
他喜欢开玩笑。
I made 11 British pounds.
我赚了十一英镑。
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。