Nevertheless, they all emphasize that pollution of air and water, noise and congestion, and the mechanization of the work process are very real and very serious problems.
Nevertheless, they all emphasize that pollution of air and water, noise and congestion, and the mechanization of the work process are very real and very serious problems.
然而他们一致强调：水，空气和噪音污染，交通拥挤，机械性的工作等问题的确是很严重的现实问题。