Students often enter a state of active-passive sleep during long lectures, where they are physically present but mentally disengaged.
学生在长时间的讲座中常常进入主动-被动睡眠状态，身体在场但精神上却疏离。
The teacher used interactive methods to prevent students from falling into active-passive sleep.
教师使用互动方法来防止学生陷入主动-被动睡眠。