| 单词 | bi- |
| 释义 | bi- comb. form (often bin- before a vowel) forming nouns and adjectives meaning: 1. having two; a thing having two (bilateral; binaural; biplane). 2. a occurring twice in every one or once in every two (bi-weekly). b lasting for two (biennial). 3. doubly; in two ways (biconcave). 4. Chem. a substance having a double proportion of the acid etc. indicated by the simple word (bicarbonate). 5. Bot. & Zool. (of division and subdivision) twice over (bipinnate). Etymology: L |
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