生产的最终条件是生产条件的再生产。

I fell off my pink cloud with a thud.

如果土地出现了不协调的情况，宁可干燥，也不要等到了其湿润的时候，再去种植农作物。

Be a yardstick of quality.Some people aren’t used to an environment where excellence is expected.

"Life is too short to waste time on things that don't matter."

不经过一年中最寒冷的时候，无法知道松柏是最后凋谢的；不经过艰难的考验，无法知道一个人是不是真正的君子。

理论地理学是空间科学的女王。

"Every child deserves a bookshelf full of stories that reflect their own experiences and open windows to new worlds."