Previtamin a
[医] 前维生素A, 胡萝卜素
🧩 词语组成解析
维生素原, 前维生素
🗣️ 情景例句
Nothing much.
没什么要紧的事。
I never would have thought of it if you hadn't mentioned it.
如果你没提及，我将不会想到它。
If they can each be trusted to take such responsibilities.
如果企业的每个人都信得过，人人都认真负责，