Iactochrome
[医] 核黄素, 维生素B-2
🗣️ 情景例句
I studied English in school.
我是在学校里学的英语。
How much is the telephone bill a month?
每个月电话费要多少钱？
We can't go to the public parks or swimming pools.
我们不能上公园或是去游泳池。