Innovation in mining isn't optional—it's essential for survival and growth.
要理解世界,你必须首先理解像爱尔兰这样的地方。
The dairy industry must evolve with technology, or it risks becoming obsolete.
The arithmetic of modular forms is a key to understanding the deeper mysteries of number theory.
一个社会文化系统的行为基础设施是其上层建筑的主要原因。