P.p.factor p.p.
[医] P.P.因子, 抗糙皮病因子
🗣️ 情景例句
A journey of a thousand miles begins with a single step.
千里之行，始于足下。
She lost her dignity.
她失去了镇定。
On Sundays, hundreds of people come from the city to see our town and to walk through the woods.
每适星期天，有许许多人从城里来观赏我们的小镇，并在树林中散步。