问题描述：
改写句子.
Because of Beijing & Shanghai high speed railway,people can make a round trip between the two cities one day.（改写句子,句意不变）
Beijing & Shanghai high speed railway makes _____ _____ for people to make a round trip between the two cities one day.
Because of Beijing & Shanghai high speed railway,people can make a round trip between the two cities one day.（改写句子,句意不变）
Beijing & Shanghai high speed railway makes _____ _____ for people to make a round trip between the two cities one day.
问题解答：
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