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自由是对自我设定法则的服从。
Stepchildren are at greater risk because evolutionary pressures have shaped parental psychology to favor genetic offspring.
The cognitive map is not a picture or a model in the head, but a dynamic, changing representation of the environment.
I'm not a role model... Just because I can rap doesn't mean I'm a role model.
你必须愿意努力工作,并专注于你的目标。