Conics
n. 锥线法, 锥线论
🗣️ 情景例句
It's a serious matter for a lot of us.
对我们许多人来说这可是个严重的问题。
Look before you leap; see before you go.
三思而行。
Her will to live enabled her to recover.
她求生的欲望使她得以复原。