I'm not perfect, but I'm limited edition.
农业的效率不仅仅是产量的问题;它关乎资源管理。
追求数学知识是一场永无止境的冒险,充满了挑战、惊喜和解决不可解问题的满足感。
The problem, as I see it, is that you’ve been told to believe that what you do is of the utmost importance. But that’s all nonsense.
The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants.