英语词汇leap year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	leap year
词根词缀	Online Etymology Dictionary leap year n. late 14c., from leap, v. + year. So called from its causing fixed festival days, which normally advance one weekday per year, to "leap" ahead one day in the week.
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