| 1. | I live on my own for past twenty years
在过去的二十年里,我独自一人生活着 |
| 2. | Live on my own for past twenty years
在过去的二十年里,我独自一人生活着 |
| 3. | There have been great changes in china in the past twenty years
在过去的二十年里，祖国已经发生了很大的变动。 |
| 4. | The past 20 years saw rapid development of telephone service in china
在过去的二十年里中国的电话业务发展迅速。 |
| 5. | Land available for farming
在过去的二十年里 |
| 6. | We have done considerable transactions with the said company in the past twenty years
在过去的二十年里，我们与该公司做了大量交易。 |
| 7. | During the last twenty years , distributed system has evolved to be one of the most useful parallel computing panels
在过去的二十年里，分布式系统已经成为一种重要的并行计算平台。 |
| 8. | Atria have become much more common as integral components of commercial building designs over the last twenty years
在过去的二十年里中庭作为商业建筑设计中不可或缺部分已愈加普遍。 |
| 9. | Over the last two decades , scientists have observed a slight increase in temperature on the surface of the earth
科学家们在过去的二十年里，通过观察发现了地球表面的温度有轻微的上升。 |
| 10. | In the past 20 years , however , the number of seriously underdeveloped countries in the world has increased from 27 to 48
在过去的二十年里，世界上最不发达的贫困国家，已经从27个增加到48个。 |
