单词	bird's-foot violet
释义	bird's-foot violet noun : a common violet (Viola pedata) of the eastern U.S. with deeply cleft leaves and pale blue to purple flowers Word History First Known Use 1802, in the meaning defined above
随便看	principal sum principal visual ray principal work principalities principality principally principalness principals principalship principalships principate principates principe principes principia principial principials principiant principium principle principle of acceleration principle of association principle of causality principle of contradiction principle of duality

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