| 1. | Water usage, like our usage of mineral resources, shows a marked increase over the past few decades .
水的用量，象矿产资源一样，比过去几十年有显著的增长。 |
| 2. | Asia has been home to many economic miracles over the past few decades
过去数十年间，亚洲发生了很多经济奇迹。 |
| 3. | Over the past few decades many governments around the world have viewed this trend with alarm
过去几十年来，世界各地许多国家的政府，已经把这个趋势视为一种警讯。 |
| 4. | Population pyramids tell us something about how hong kong has developed over the past few decades
过去数十年来，香港的发展及变化甚大，这正可从人口金字塔中反映出来。 |
| 5. | The depressed world prices created by farm policies over the past few decades have had a devastating effect
过去几十年的农业政策压低了世界农产品价格，其后果是灾难性的。 |
| 6. | Over the past few decades , more and more americans have started suffering from seasonal allergies and asthma
在过去的几十年中，越来越多的美国人开始患上季节性过敏症和哮喘。 |
| 7. | The depressed world prices created by farm policies over the past few decades have had a devastating effect
因过去几十年的农业政策而受到压抑的世界价格已经产生了毁灭性的效果。 |
| 8. | Indeed , the growth of the bond market has lagged far behind that of the stock market and the banking industry over the past few decades
事实上，在过去数十年，债券市场的发展远远比不上股市及银行业。 |
| 9. | Indeed , the growth of the bond market has lagged far behind that of the stock market and the banking industry over the past few decades
事实上，在过去数十年，债券市场的发展远远比不上股市及银行业。 |
| 10. | Tropical america is just one of many regions that have seen dramatic losses of amphibian species over the past few decades
过去数十年中，许多地区都经历了两栖物种的急剧减少，热带美洲只是其中一个地区。 |
