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| 11. | Due to human population explosion and to merciless hunting methods, many animal species have already |
| 由于人口剧烈增长和竭泽而渔的捕猎方式，许多动物的品种已被灭绝。 |
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| 12. | From the tracks we saw we concluded that animal must have been a deer |
| 我们根据所看见的足迹断定那只动物准是一头鹿。 |
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| 13. | answer to the name of sth:( esp of a pet animal)have the name of sth;be called sth |
| （尤指宠爱的动物）名叫,叫作 |
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| 14. | Medical scientists say that animal experiments have been very important for the development of new medicines |
| 医学科学家说动物实验早已是研制新药的重要手段。 |
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| 15. | We have seen that hibernating animal reduces movements to far below the ordinary level. |
| 冬眠动物的活动量减少到远远低于一般水平。 |
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| 16. | We have seen that hibernating animal reduces movements to far below the ordinary level. |
| 冬眠动物的活动量减少到远远低于一般水平。 |
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| 17. | The accurately proportioned human and animal figures have fluid lines, natural expressions and life-like |
| 三彩人物和动物的比例适度，形态自然，线条流畅，生动活泼。 |
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| 18. | Natural dyes from plant and animal products have been used since ancient times. |
| 从古代就开始使用从植物和动物中提取的天然染料。 |
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| 19. | But animal behaviorists have long believed that the crow has at least one thing in its favor. |
| 但动物行为学家一直认为，乌鸦至少有一个优势：它是世界上最聪明的鸟之一。 |
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| 20. | High noise levels in laboratory animal facilities have been shown to adversely affect rodents. |
| 在实验动物设施中高程度的噪音对于啮齿类有不利的影响。 |
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