- the prehistoric unrecorded language that was the ancestor of all Indo-European languages
| 单词 | proto-indo-european |
| 释义 | WordReference Random House Unabridged Dictionary of American English © 2024 Pro•to-In•do-Eu•ro•pe•an (prō′tō in′dō yŏŏr′ə pē′ən),USA pronunciation n.
adj.
Collins Concise English Dictionary © HarperCollins Publishers:: Proto-Indo-European n
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