| 词汇 | bi- |
| 释义 | bi- prefix used at the beginning of some words to mean including two of something, or doing something twice 双，两（倍）: bilingual (=speaking two languages perfectly, or written using two languages) 能说或写两种语言的，双语的 bimonthly (=every two months, or twice a month) 每两月一次的; 每月两次的 |
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