Nitrocobalamin
硝钴胺
🗣️ 情景例句
I know it hurts.
我知道那儿痛。
When the fruit is scarcest, its taste is sweetest.
物以稀为贵。
A woman in jeans stood at the window of an expensive shop.
一位穿着牛仔裤的妇女站在一家高档商店的橱窗前。