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空气污染即空气中含有一种或多种污染物，其存在的量、性质及时间会伤害到人类、植物及动物的生命，损害财物、或干扰舒适的生活环境，如臭味的存在。换言之，只要是某一种物质其存在的量，性质及时间足够对人类或其他生物、财物产生影响者，我们就可以称其为空气污染物;而其存在造成之现象，就是空气污染。换言之，某些物质在空气中不正常的增量就产生空气污染的情形。

bruce:

There are so many environment problems in the world today. Do you think we can really solve them all or will destroy the world?

现在全球有太多环境问题.你觉得我们能解决所有的问题还是让环境问题来顺坏整个地球.

jack:

I hope that world leaders can get together and agree on a plan for action, but I doubt it`ll happen before it`s too late.

我希望领导人们能趁早联合起来制定计划，不要等为时已晚。

bruce:

We need to solve the problem of air pollution before we destroy the atmosphere. There`s lots of clean, modern technology, but companies in developed countries say it`s expensive. Developing countries put more emphasis on economic development than on envir

我们需要在大气层被破坏以前解决空气污染问题,这里有很多清洁的现代科技,但是发达国家的大公司们都说成本太高.发展中国家游吧精力集中在发展经济上而不注重环境保护.

jack:

Everyone is looking at the issue in the short term, rather than the long term It`s the same with the destruction of the rainforests. Countries and companies just want the wood. They`re not thinking about the long- term damage to the forests. We should als

人们应该看得长远点而不是只看短期利益.对热带雨林的破坏的情况也是一样.国家和那些大公司们只要木材.就不考虑对森林的长期破坏.我们应该知道.森林也是世界上长千上万个生命物种之一.