Collogen
[医] 胶原
🗣️ 情景例句
Does anyone have any complaints?
谁有什么不满意的地方吗？
McGovern used to be a clergyman.
麦克葛根天生就是当牧师的材料。
These satellites go round the earth and help us to learn more about the earth, the weather and other things.
这些卫星绕着地球转，帮助我们更好地了解地球、天气和其他情况。