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

Curiosity is the engine that drives us towards understanding the cosmos.

Leadership in mining means making tough decisions today for a better tomorrow.

成功不是靠運氣，而是靠努力和決心。

Success is not final, failure is not fatal: It is the courage to continue that counts.

The man who is fit to work at any particular trade is unable to understand the science of that trade without the kindly help and cooperation of men of a totally different type of education.

能源的未來在于傳統能源與可再生能源的融合。

監獄里的高墻實在是很有趣。剛入獄的時候，你痛恨周圍的高墻；慢慢地，你習慣了生活在其中；最終你會發現自己不得不依靠它而生存。這就是體制化。