从日本到中国坐飞机要多长时间？

How long does it take to fly from Japan to China?

youdao

你从日本到中国花了多长时间？

How long did it take you to get from China to Japan?

youdao

你从日本到中国花了多长时间？

How long did it take you to get from China to Japan?

youdao