每间两种睡眠：主动和被动睡眠晚上我们轮流睡觉。
Each night we alternate between two kinds of sleep: active sleep and passive sleep.
这种新的3d眼镜可以转换主动和被动两种3d影像。
The new specs can render 3d images from both active shutter technology and passive 3d content.
面向对象的模型将系统定义为一组交互的主动和被动对象的集合。
The object-oriented model defines a system as a collection of sets of interacting active and passive objects.
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