Dihydroxycholecalciferol
n. [生化]二羟胆钙化(甾)醇,二羟维生素D&-{3}
🗣️ 情景例句
and I have a production meeting at four.
我四点钟有个生产会议。
I put some photographs in the envelope.
我在信里夹了几张照片。
Sorry, I don't know.
对不起，我不知道。