中心地的等级越高,其数量越少,影响范围越大。
The novel is a way of thinking about the world, not just a way of describing it.
人类心智形成和操纵符号的能力使我们区别于其他动物。
煤炭的未来不在于数量,而在于我们能否清洁高效地利用它。
"I think the most important thing is to be honest and truthful in your work."