Grace : can we find a way to prevent this ? isn ' t it also very hard to find clean water in central and south america 我们可以找出一个预防的方法吗？毕竟在中南美洲也不太容易找到干净的水，对吧？
The top four were basic health care , better water and sanitation , more schools and better nutrition for children 头四位是基本卫生保健、干净的水和公共卫生设施、更多的学校和使儿童有更好的营养。
It says countries ca ot provide clean water unle they slow population growth by limiting the number of children people have 它说除非各国能通过限制生育来降低人口的增长，否则它们不可能提供干净的水。
It is therefore important to have clean water and sewers because it will decrease cholera and perhaps prevent it for good 因此，拥有干净的水和下水道十分重要，因为这能减少、或许永远防止霍乱的发生。
Cholera is usually spread through water or food , in places where conditions are dirty and drinking water supplies are unsafe 霍乱常常是在环境比较差的地方通过水或者食物传播，也可以通过饮用不干净的水。
It says countries cannot provide clean water unless they slow population growth by limiting the number of children people have 它说除非各国能通过限制生育来降低人口的增长，否则它们不可能提供干净的水。
Still with the same chatter and laughter the officers began hurriedly getting ready ; again the samovar was filled up with dirty water 军官们仍然有说有笑，急忙开始做出发的准备他们又烧了一茶炊不干净的水。
Their water supplies are unsafe because of natural or man - made pollution , such as industrial chemicals or human and animal wastes 不干净的水是由于自然或是人为的污染造成的，比如工业化学物质或是人类和动物的污染。
You know california is over - populated state , but , even in that state , you can find real wilderness , clean air , clean water 你知道加州是个人口过多的地方，但即便是在那儿，你仍然能够发现旷野、清新的空起和干净的水。
Kathy ： well ， we want to save our natural resources for the next generation . you know … … clean air ， clean water and rich forest and wildlife 凯西：是这样。我们希望为下一代保护自然资源。你知道，我指的是洁净的空气，干净的水，丰富的森林资源以及野生动植物。
