Conics
n. 锥线法, 锥线论
🗣️ 情景例句
What a downpour!
下得可真够大的！
You should take the advice of your teacher.
你应该听老师的话？
One Saturday afternoon, I hauled the machine into the garden and had a close look at it.
一个星期六的下午，我把割草机拉到了花园里，仔细检查了一番。