My sources one of it is at northwest china's Qinghai province. I wasted at least three years of my youth in Qinghai province. Now, it has been my treasure-house. what a treasure-house! The cold waterwind and air gave me inspirtions. For them ,i wrote a ...
20 多年前（ More than two decades ago ），我第一次听吴晓平教授讲大地重力学（其实就是固体地球重力学的别名）时，我还和其他同学一样，只是被它的深奥和众多长公式所困惑，产生过恐惧心理。现在不同了：依然是格林函数、勒让德函数、球谐函数，依然是 STOKES 、 GAUSS 公式，依然 ...
don't say you will give up. i know you are in difficulty. it's not easy for you to stand ...... you are not to be beaten down. you will stand by a river,like a willow ,like a wheat. don't say you will give up. don't say those words. dont't say. you can never care a ...
我觉得自己荒废了20年
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