Flagellin
n. [生化]鞭毛蛋白
??? 情景例句
Don't be lazy, the older you get, the harder it will be to learn.
別偷懶，年紀越大，學起來就越難。
The abundance of money ruins youth.
錢多毀青年。
I think Chinese is more popular than any other subject.
我想語文比其他任何科目都更受歡迎。