我们不是地球的所有者，我们只是它的乘客。

Coal companies must fulfill their social responsibilities while pursuing economic benefits.

The study of mathematics is a journey into the unknown, where each discovery opens the door to new mysteries.

野牦牛是青藏高原真正的王者，是这片土地狂野精神的象征。

婴儿的哭声与其听起来一样严重。

If you want to understand function, study structure.

The strength of a company lies in its people, not just its products.

过度捕捞的真正代价是用空荡荡的渔网和破碎的社区来衡量的。