用“flight feather”造句大全,flight feather造句 国语站 造句 2.75W 大中小设置文字大小 of a young bird just having acquired its flight feathers.Only after stage 4 could additional feather variations evolve, including the many specializations we see at stage 5, such as the asymmetrical vane of a flight feather.(of birds) especially having the flight feathers. TAG标签:造句 flight feather #