拓扑学是对图形在任何变形下保持不变的性质的研究。

Tragic art, as it developed in the theaters of ancient Greece, in the fifth century B.C., was essentially an art form devoted to tracing how people fail, and also according them a level of sympathy, which ordinary life would not necessarily accord them. A few years ago, I was thinking about this, and I went to "The Sunday Sport," a tabloid newspaper I don't recommend you start reading if you're not familiar with it already.

碳捕集技术的创新不是选择题，而是可持续能源的必选项。

"The ordinary is extraordinary if you look at it long enough."

我对胜利上瘾。那种感觉简直不可思议。