Dihydrocaliciferol
二氢钙化甾醇, 二氢骨化醇
🗣️ 情景例句
Well, you really saved the day for me, Alexandra.
你真的帮了我一个大忙， Alexandra。
It's a quiet city.
这是一个安静的城市。
Just ahead of us there was a huge fissure.
离我们不远处，出现一个大裂缝。