Purocholecalciferol
焦胆钙化(甾)醇, 胆甾二烯醇
🗣️ 情景例句
Where are you going during Summer vacation?
暑假你打算去哪儿？
Turn left at the first light. You can't miss it.
到第一排红绿灯处往左拐。你不会找不找的。
I am in charge of the company when the manager is out.
经理不在时山我来管理公司。