语法和语义之间的相互作用是形式语言研究的核心。
The interplay between syntax and semantics is central to the study of formal languages.
真相很少是纯粹的，也从不简单。
The happiness of society is the end of government.
Escribir es una forma de resistencia contra el olvido.
I know you've heard it a thousand times before. But it's true-hardwork pays off. If you want to be good, you have to practice, practice, practice.
我感激在球场上的每一刻。
恐惧常常是我们最大不幸的根源。