Previtamin
维生素原, 前维生素
🔁 扩展释义
【医】 前维生素(维生素先质)
🗣️ 情景例句
how could I live in Los Angeles
我怎么能住在Los Angeles
I am ready for whatever comes.
无论发生什么事，我都有准备。
They put their hands behind their backs, so you can't see their hands.
他们将手放在背后，这样你就看不见他们的手了。