| 词汇 | Proto-Indo-European |
| 释义 | Proto-Indo-EuropeanBrE /ˌprəʊtəʊ ˌɪndəʊ ˌjʊərəˈpiːən/ NAmE /ˌproʊtoʊ ˌɪndoʊ ˌjʊrəˈpiːən/ noun [U ]the ancient language on which all Indo -European languages are thought to be based . There are no written records of Proto -Indo -European , but experts have tried to construct it from the evidence of modern languages 原始印欧语（据信为所有印欧语言之源头） |
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