英语词汇unflappable的发音释义、词根词缀、结构分析、同源词、词频及词根记忆法-英语词根词缀词典

词汇	unflappable
词根词缀	词源： 1958, from un- (1) "not" + flap (v.) + -able. Originally used in ref. to Harold Macmillan, British P.M. 1957-63.
随便看	York Yosemite you young young and old youngster your yours yourself youth yow yowl yo-yo ytterbium yttrium yuan yucca yuck Yugoslav yule yummy yup yuppie Z Zacchaeus

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