Docrystalline
多晶质
🗣️ 情景例句
Don't talk with your mouth full.
嘴里满是东西时别说话。
Let's go. I'll buy you a drink.
走，我请你喝一杯！
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。