Zookeepers and fans are anxiously waiting to see if polar bears Knut and Gianna are going to hit it off after they were introduced to each other.是什么意思_Zookeepers and fans are anxiously waiting to see if polar bears Knut and Gianna are going to hit it off after they were introduced to each other.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句