| 1. | Large numbers exist in perpetual poverty .
大量的人长期生活在贫困之中。 |
| 2. | Energy can exist in a variety of modes .
能量能以各种形式存在。 |
| 3. | Water exists in the soil in three major forms .
水在土壤中有三种主要的形式。 |
| 4. | Such a gap did not exist in early computers .
早期的计算机是没有这种差距的。 |
| 5. | Matter exists in three states : solid , liquid and gas .
物质以三种形态存在： |
| 6. | It also exists in active and inactive forms .
它也存在着活跃的和不活跃的两种类型。 |
| 7. | These acids exist in intramolecularly bonded forms .
这些酸呈内分子氢键的形式存在。 |
| 8. | Certainly they exist in societies and nations .
当然，这些也存在于各类国家和社会中。 |
| 9. | There exists in the cosmos a preferred frame of reference .
宇宙中有一个从优参照系。 |
