〈党员须宣传革命主义〉,在梧州对国民党员的演说,1921年10月29日至11月15日间
The interplay between syntax and semantics is central to the study of formal languages.
学习人工智能的最佳方法是通过做项目和解决现实世界的问题。
I can't understand why people are frightened of new ideas. I'm frightened of the old ones.