This is the nightmare scenario of an influenza pandemic, affecting not only Vietnam but much of the world. But on Sunday, at least, it was only a drill.是什么意思_This is the nightmare scenario of an influenza pandemic, affecting not only Vietnam but much of the world. But on Sunday, at least, it was only a drill.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句