retrogradation
/ˌrɛtroɡrə'deʃən/
n. 
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barverine, barware, baryacusia, barycenter, barycentre, barycentric, Barychilinidae, barydynia, barye, baryencephalia,
相似单词
retroflexed, retroflexion, retrofocus, retrogasserian, retrognathia, retrogradation, retrograde, retrograde amnesia, retrogradely, retrogress,