Keratoelastin
鱼卵壳蛋白
🗣️ 情景例句
I'm not letting you get behind the wheel until you've sobered up.
除非你完全清醒了我才会让你开车。
No pain, no gain.
不劳则无获。
Firemen had been fighting the forest for nearly three weeks before they could get it under control.
消防队员们同那场森林大火搏斗了将近3个星期才最后把火势控制住。