Warning: file_put_contents(/www/wwwroot/ppbbu/cp667.com/cache/2019dcdd7179fe96103d9f1437902878.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/cp667.com/index.php on line 55 primary feather是什么意思，primary feather的翻译，primary feather音标、读音、用法和例句_淳朴汉英词典
Upperwing has pale greyish-white primary bases and often pale rufous or yellowish-brown forewing, paler than dark grey flight-feathers. 翼上初级飞羽呈现灰白色，翼前缘经常为淡棕色或黄棕色，比飞羽的深灰色要浅。