The bill of the Toco Toucan makes up about one-third of its body length and ornithologists have long wondered about the purpose for the appendage.是什么意思_The bill of the Toco Toucan makes up about one-third of its body length and ornithologists have long wondered about the purpose for the appendage.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句