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| 1. | The Polish scientist has spent his life- time studying active volcanoes and deep caves in all parts of |
| 波兰科学家化费了毕生精力研究世界各地的活火山和深岩洞。 |
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| 2. | Haroun Tazieff, the Polish scientist, |
| 哈罗恩. 塔捷耶夫, 波兰科学家， |
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| 3. | Another of the giants was the Polish scientist Nicolaus Copernicus. |
| 另外一位巨人是波兰科学家尼古拉斯·白尼。 |
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| 4. | Haroun Tazieff the Polish scientist has spent his lifetime studying active volcanoes and deep caves in |
| 波兰科学家HarounTazieff化费了毕生精力研究世界各地的活火山和深岩洞。 |
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