Mobility is a basic behavioural pattern of human beings that has been accelerating in the course of its social development.
移动性是人类最基本的行为模式，它总随着它的社会化进程而不断加速。
Mobility is a basic behavioural pattern of human beings that has been accelerating in the course of its social development.
移动性是人类最基本的行为模式，它总随着它的社会化进程而不断加速。
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