Isopyrocholecalciferol
异焦胆钙化醇, 胆甾二烯醇
🗣️ 情景例句
An apple a day keeps the doctor away.
每天一个苹果不用看医生。
As the wind blows, you must set your sail.
趁风启帆。
The cave might never have been discovered has not the entrance been spotted by the distinguished French pot-holer, Berger.
若不是法国著名洞穴探险家伯杰由于偶然的机会发现了这个洞口的话，这个洞也许不会为人所知。