Keratinizes
v. 使角质化, 角质化（keratinize的第三人称单数形式）
🗣️ 情景例句
Vanilla, too?
香草的也要？
The first step is the only difficulty.
万事起头难。
When I was a boy, my grandfather told me how a German taxi driver, Franz Bussman,
当我是个孩子的时候，我祖父给我讲了一位德国出租汽车司机弗朗兹。