变化的速度如此之快,以至于我们必须跑得更快才能保持在原地。
The speed of change is such that we have to run faster just to stay in the same place.
Safety production is the lifeline of mining enterprises and must be consistently emphasized.
哲学的功能是在作为统治阶级武器的科学思想和作为无产阶级武器的科学思想之间划清界限。