Violanthrone
蒽酮紫(紫色还原染料)
🔁 扩展释义
【化】 紫蒽酮
🗣️ 情景例句
It has been raining constantly for two days.
雨连续下了两天。
How should I say this?
这该怎么说呢？
I'm thinking of buying some next Sunday.
我打算下星期天去买几条。