单词	Allen's rule
释义	Allen's rule noun : a statement in zoology: protruding body parts (as ears, tail, legs, bill) of warm-blooded animals are relatively shorter in cooler than in warmer parts of the range Word History Etymology after Joel A. Allen First Known Use 1937, in the meaning defined above
随便看	syncellus syncer syncerebral syncerebrum syncest synch synched synching synchisite synchondroses synchondrosial synchondrosially synchondrotomy synchoreses synchro synchro-shutter synchro-sunlight synchrocyclotron synchrocyclotrons synchroflash synchroflashes synchromesh synchromeshes synchronal synchronaler

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