色多多在线观看播放-色多多在线观看高清免费-色多多在线观看视频-色多多在线看-欧美aaaaa性bbbbb小妇-欧美aaaav免费大片

可持續(xù)性不是一個流行詞，而是礦業(yè)前進的唯一道路。

The human being is always more than what he has done; he is also what he can do.

Simplicity is the ultimate sophistication.

能源的未來在于平衡經(jīng)濟增長與環(huán)境管理。

I've always been interested in art and making things, but I chose not to go to art school because I thought I needed to do something else. Art was a tough way to make a living. I've always done both. I just kind of figured that the marine biology would be a career and the art would be something I did for my own self-expression.

始終保持你的刀鋒利，你的智慧更鋒利，你的精神最鋒利。