你是别人眼中美丽的定义。
「释义」：但凡学习不勤奋的人，必定是志向不够坚定。
I’m a human being and I fall in love and sometimes I don’t have control of every situation.
The best way to learn mathematics is to do mathematics.
Innovation in natural gas extraction is key to meeting the world's growing energy demands while reducing environmental impact.