Violanthrone
蒽酮紫(紫色还原染料)
🔁 扩展释义
【化】 紫蒽酮
🗣️ 情景例句
When will she come back?
她什么时候会回来？
He was renowned as a portrait painter.
他以肖像画家著名。
This will relieve pressure on the trains to some extent.
这将在某种程度上减轻对火车的压力。