Safety production is the lifeline of mining enterprises and must be consistently emphasized.

孩子是最苛刻的观众，但也是最值得的。

The only thing that is constant is change.

历史的重量总是存在于我们使用的材料中。

To understand mathematics is to understand the fabric of reality.

时间存在的唯一理由是让一切不会同时发生。

每一座建筑都是一个原型。没有两座是相同的。