Alizarinopurpurin
紫色素, 红紫素, 1, 2, 4-三羟蒽醌
🗣️ 情景例句
She grabbed the chance to travel abroad.
她抓住机会到国外旅行。
What is the color of your new book?
你的新书是什么颜色的？
We want it to stay down the hole until we can lead it off in a controlled manner.
我们要让石油留在井下，直到我们能用一种有控制的方法把它引上来为止。