how fast does an aeroplane travel?

how fast does an aeroplane travel? how fast does a balloon travel?How about an overplance?How a how fast does a dalloon travel? How fast does a balloon travel? 飞机是怎么转弯的?How does an aeroplane swerve 2. How does Travel Benefit an Individual How fast can a ball travel in an Olympic table tennis match? 英语翻译Table TennisQ:How fast can a ball travel in an Olympic t how fast does a car run?60 kilometers an hour,60 kilometers how dose travel benefit an individual Kitty can see an aeroplane对an aeroplane提问 a an 填空 .aeroplane .egg