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关于pennaceous的百科

pennaceous造句怎么写

  • pennaceous造句怎么写

  • Xucallsita"four-winged"dinosaurbecauseithadlong,pennaceousfeathersonitsarmsandlegs.Eventually,denserowsofinterlockingbarbsformedaflatsurface:thebasicblueprintoftheso-calledpennaceousfeathersofmodernbirds....
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