| 例句 |
Environmentalists say a critical factor in the city's pollution is its population.环保人士称造成该市污染问题的一个关键因素是其人口数量。Discuss pollution with your child, emphasizing how nice a clean street, lawn, or park looks.和孩子讨论污染问题，强调清洁的街道、草地或公园有多么美丽。If we don't do something about the pollution problem, we'll be sitting on a ticking time bomb.如果我们不对污染问题采取措施，我们就相当于坐在一颗嘀嗒作响的定时炸弹上。The agency has promised action on the pollution problem for years, but nothing has happened.那个行政部门答应对污染问题采取行动已多年了，但未见任何动作。Your homework is to write a two-page theme on pollution.你们的家庭作业是就污染问题写一篇两页的作文。We discussed the problem of pollution.我们讨论了污染问题。There was a great deal of concern about pollution.人们很关注污染问题。We have a major on-going research programme into North Sea pollution.对于北海的污染问题，我们有一个大型研究项目正在进行。Measures to combat pollution within the city have been introduced.为应付市内的污染问题已实施了一些措施。 |