Keratinose
角(蛋白)
🗣️ 情景例句
There are a lot of beggars on the street, how can we help them?
街上的乞丐那么多，我们怎么能帮助他们呢？
In prosperity caution, in adversity patience.
处顺境时要小心，处逆境时要耐心。
This lamb's very good.
这羔羊肉很好。