Quadrics
二次型
🗣️ 情景例句
I think I can swing that.
我想我能办到这点。
Old foxes want no tutors.
老狐狸不需要教师。
and he had seen there evidence enough to overthrow Aristotle and Ptolemy together.
观察到的论据足以把亚里士多德和托勒密一起推翻。