Naphthoquinoxaline
1, 4-二氮杂蒽
🗣️ 情景例句
I hope you're hungry.
我希望你饿了。
My brother wants to learn how to dance.
我的兄弟想要学习跳舞。
The development of such a telescope will be one of the great astronomical projects of the twenty-first century.
而开发这样一台望远镜将会是21世纪天文学的一个重要的研究课题。