Precalciferol
[化] 前钙化醇
🗣️ 情景例句
And right now, he needs a friend.
而且现在， 他需要一个朋友。
I was perfectly aware of this before we married.
结婚前我就完全意识到这个问题。
then administrative overheads will be low.
行政管理费用就会降低。