Retinaldehyde
视黄醛
🗣️ 情景例句
Today is pretty cold.
今天挺冷的
Now that I've seen how he lives, I know why he needs so much money.
看过了他的生活状态，我现在才知道他为什么需要那么多钱。
Perhaps more than half a year.
大约半年多吧。