Lactin
内酰亚胺, 乳糖
🔁 扩展释义
【医】 乳糖
🗣️ 情景例句
I have to sign copies of my book for a lot of people
我还必须为许多人在我的书上签名
Good children make glad parents.
孩子好，父母笑。
How much cloth does it take to make a skirt for the girl?
女孩做一条裙子要用多少布？