Violanthrone
蒽酮紫(紫色还原染料)
🔁 扩展释义
【化】 紫蒽酮
🗣️ 情景例句
I would like to send this by registered mail, please.
我想把这封信挂号寄出。
You two don't have much contact
？ 你们俩没怎么联系吗？
As the Maori had no written language, the stories of Maori history were handed down from generation to generation.
由于毛利人当时没有书面语，毛利人的历史故事是一代一代传下来的。