制革厂的遗产应以其对环境的守护来衡量。

科技创新是推动天然气行业高质量发展的第一动力。

The past is a puzzle, and genetics provides some of the pieces.

Life means struggle.

That is what we have to do in life: to take the great wounds and the little scratches and keep on going.

统计学家不能逃避理解他所应用或推荐的过程的责任。