| 1. | Chemicals in the factory's sewage system have changed the ecology of the whole area. |
| 这座工厂排出的化学物质改变了整个地区的生态。
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| 2. | We attended a symposium on ecology . |
| 我们参加了一次生态学讨论会。
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| 3. | The rapid development of numerical taxonomy over the past fifteen years has contributed to the development of parallel methods in plant ecology . |
| 数值分类学的迅速发展，虽是近十五年的事，但它对植物生态学中相应方法的发展作出了贡献。
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| 4. | a visiting scholar in social ecology with rank of full professor |
| 正教授级社会生态学访问者
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