Alizarinopurpurin
紫色素, 红紫素, 1, 2, 4-三羟蒽醌
🗣️ 情景例句
What's up?
有什么事？
But you just got here. Can't you stay a little longer?
不过你刚来呀。不能再呆一会了吗？
We owe a lot to the birds and beasts who eat insects but all of them put together kill only a fraction of the number destroyed by spiders.
我们要十分感谢那些吃昆虫的鸟和兽，然而把它们所杀死的昆虫全部加在一起也只相当于蜘蛛所消灭的一小部分。