- three or thrice: triaxial, trigon, trisect
- occurring every three: trimonthly
单词 | tri- |
释义 | WordReference Random House Learner's Dictionary of American English © 2024 tri-, prefix. WordReference Random House Unabridged Dictionary of American English © 2024
tri-,
Collins Concise English Dictionary © HarperCollins Publishers:: tri- prefix
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