| 单词 | twenty-first |
| 释义 | twenty-first /twen"tee ferrst", twun"-/, adj. 1. next after the twentieth; being the ordinal number for 21. 2. being one of 21 equal parts. n. 3. a twenty-first part, esp. of one (1/21). 4. the twenty-first member of a series. |
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