快速交通工具如飞机冲走旧国界，缩短了人们之间的物理距离。
Quick transportations such as airplanes have swept away the old national boundaries and shortened the physical distance among people.
快速交通工具如飞机冲走旧国界，缩短了人们之间的物理距离。
Quick transportations such as airplanes have swept away the old national boundaries and shortened the physical distance among people.
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