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![pennaceous造句]( "pennaceous造句")
pennaceous造句
Xucallsita"four-winged"dinosaurbecauseithadlong,pennaceousfeathersonitsarmsandlegs.Eventually,denserowsofinterlockingbarbsformedaflatsurface:thebasicblueprintoftheso-calledpennaceousfeathersofmodern...
