医生和护士夜晚值班

There are two security guards inside! Han Zhong said, there are a total of eight security guards in the factory, divided into two groups, one on duty during the day and one at night. One group of four, two on duty at the same time, cycle day and night. Let's go and see what's going on inside. If those two guys are still on duty, If you behave like this, I will take the initiative to resign!...