Warning: file_put_contents(/www/wwwroot/zidian/diubi.cn/cache/54388330f4c6aebfabbf4f8204b1425a.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/diubi.cn/index.php on line 59 primary feather是什么意思，primary feather的翻译，primary feather音标、读音、用法和例句_果味酸柯林斯词典
Upperwing has pale greyish-white primary bases and often pale rufous or yellowish-brown forewing, paler than dark grey flight-feathers. 翼上初級飛羽呈現灰白色，翼前緣經常爲淡棕色或黃棕色，比飛羽的深灰色要淺。