| 词汇 | PIE |
| 词根词缀 | 词源： Proto-Indo-European, the hypothetical reconstructed ancestral language of the Indo-European family. The time scale is much debated, but the most recent date proposed for it is about 5,500 years ago. Proto-Indo-European, the hypothetical reconstructed ancestral language of the Indo-European family. The time scale is much debated, but the most recent date proposed for it is about 5,500 years ago. |
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