The concept of the culture core is central to understanding how societies organize their subsistence activities.
文化核心的概念对于理解社会如何组织其生存活动至关重要。
真实世界是最抽象的东西。
要么忙着活，要么忙着死，人只有两种选择。
The most important thing in a programming language is the semantics, not the syntax.
Molecular design breeding is an important direction for future crop genetic improvement, it will greatly improve breeding efficiency.