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单词	pteryla
释义	pteryla noun pter·​y·​la ˈter-ə-lə  plural pterylae ˈter-ə-ˌlē  -ˌlī : one of the definite areas of the skin of a bird on which feathers grow Word History Etymology New Latin, from Greek pteron + hylē wood, forest First Known Use 1867, in the meaning defined above
随便看	ectosymbiotic ectotherm ectothermic ectotherms ectotrophic ectozoa ectozoans ectozoic ectozoon ectro- ectropies ectropions ectropiums ectropyes ectropys ects ectypal ectype ectypes ecu Ecua Ecuador ecuadoran ecuadorans ecuadorean

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