Lagranian
拉氏函數
??? 情景例句
I happened to meet her on the bus.
我湊巧在公共汽車上碰見她。
He is lifeless that is faultless.
人孰無過。
Whether the remarkable growth of organized camping means the eventual death of the more independent kind is hard to say.
有組織的露營活動的明顯發展是否意味著較獨立的自我封閉式露營的最終消失，還很難說。