| 1. | Water is a fish 's natural element .
水是鱼的自然环境。 |
| 2. | Animals in zoos are not in their natural surroundings .
动物园中的动物没有自然环境。 |
| 3. | These changes arise from differences in climate and the nature of the country .
这些变化是由这个国家的气候和自然环境产生的。 |
| 4. | Punishment is also delivered by the natural environment and in other social contexts .
惩罚也可以来自自然环境与其它社会情况。 |
| 5. | Many species are in peril of extinction because of our destruction of their natural habitat .
许多物种由于我们破坏了它们的自然环境，现在正面临灭绝的危险。 |
| 6. | The entironment that animals live bacome worser
动物生长的自然环境一直在恶化。 |
| 7. | Mountain sickness and environment in qing - zang plateau
青藏高原自然环境与高原病 |
| 8. | Join us and play your part in protecting nature
请一起参与保护自然环境的行动。 |
| 9. | We must protect the environment from pollution
我们得保护自然环境免于污染之害。 |
| 10. | Research progress of phosphine in natural environment
自然环境中磷化氢研究进展 |
