Proto-Indo-European (n.)是什么意思，Proto-Indo-European (n.)的翻译，Proto-Indo-European (n.)音标、读音、用法和例句

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Proto-Indo-European (n.)是什么意思，Proto-Indo-European (n.)的翻译，Proto-Indo-European (n.)音标、读音、用法和例句_加林查网西语词典

Proto-Indo-European (n.)

同根派生