| 单词 | swim fin |
| 释义 | swim fin in American English US flipper (sense 2) swim fin in American Englishnoun one of a pair of flippers Word origin [1945–50]This word is first recorded in the period 1945–50. Other words that entered Englishat around the same time include: RNA, fail-safe, poison pill, regression analysis, taxi squadExamples of 'swim fin' in a sentence |
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