An airplane cannot fly to the moon,beacuse the air only reaches a height of 240 kilometres. Then there is no air. But a rocket can fly even when there is no air.是什么意思_An airplane cannot fly to the moon,beacuse the air only reaches a height of 240 kilometres. Then there is no air. But a rocket can fly even when there is no air.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句