Conics
n. 锥线法, 锥线论
🗣️ 情景例句
What now?
下一步呢？
He that will swear will lie.
赌咒的人是说谎的人。
It has four Rolls-Royce Merlin engines, but the group will need to have only three of them rebuilt.
该飞机装装配有4台罗尔斯-罗伊斯的默林发动机，但是他们只需要修复其中的3台。