Any of several dark-gray aquatic birds of the genus Fulica of North America and Europe,having a black head and neck,lobed toes,and a white bill.是什么意思_Any of several dark-gray aquatic birds of the genus Fulica of North America and Europe,having a black head and neck,lobed toes,and a white bill.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句