Oxanthrol
[化] 蒽酚酮
🗣️ 情景例句
This is your big night.
今儿晚上可是你的好日子。
I think the teacher works us too hard.
我觉得教师害得我们太苦了。
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。