The World Health Organization will not declare an influenza pen demic on less pandemic unless a virus become wide spread becomes widespread in at least 2 areas of the world.是什么意思_The World Health Organization will not declare an influenza pen demic on less pandemic unless a virus become wide spread becomes widespread in at least 2 areas of the world.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句