公司已经和加利福尼亚罪犯改造所签订了一项协议，计划使用“数码天使”来追踪假释犯的行为。

The company has already signed a deal with the California department of corrections to track the movements of parolees using Digital Angel.

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很多专家表示，儿童每天使用数码设备的时间不能超过2小时——两岁以下儿童不能接触数码设备。

Many experts say children should spend no more than two hours a day using digital devices — with no screen time for children under two.

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