The study of formal languages and automata is essential for understanding the theoretical underpinnings of computer science.
The most profound discoveries often start with simple observations.
Happiness is a warm puppy...
生活不是等待暴风雨过去，而是要学会在雨中起舞。
从30英尺外看，她看起来很有气质。从10英尺外看，她看起来像是为了从30英尺外看而打扮的。