我们最关心的是那个城市的饮用水问题。
What we concern most is the problem of drinking water in that city.
饮用水缺乏是很多城市的一大问题。
The shortage of drinking water is a big problem in many cities.
城市饮用水安全问题，越来越受到人们的关注。
People pay more and more attention on drinking water's security problem.
城市饮用水安全问题，越来越受到人们的关注。
People pay more and more attention on drinking water's security problem.
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