Sustainability isn't a buzzword; it's the foundation of modern resource extraction.
We are all born with a certain inheritance of guilt.
译文:郁孤台下这赣江的流水,水中不知包含了多少乱世中行人的眼泪。我向西北眺望故都长安,可惜无数青山层层叠叠,遮住了我的视线。
The sands in you way beg for your song and your movement,dancing water。Will you carry the burden of their lameness?
学习数学的最好方法就是做数学。