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1. | In September, scientists also announced they had found the skeleton of a 3-million-year-old early human |
| 而在9月,科学家们又宣布他们发掘出了一具拥有300万年历史的早期人类祖先的骸骨。 |
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2. | An extraordinarily complete skull of a 30-million-year-old human ancestor once held a brain about the |
| 一项新研究发现,保持非常完整的距今三千万年的人类祖先头骨,其容量有莱蒙大小。 |
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3. | a member of an extinct species of human being; probably an ancestor of modern man. |
| 濒临绝迹的一个人种;可能是现代人的祖先。 |
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