each和every均接单数可数名词,但each只接单独的一个.如果是接三个以上的可数名词,则用every.
您后面的表达是不对的,如果您想强调所有的学生应该怎样,应该用each of the students.例如:
Many trees are on each side of the road.
Each of the classmats phoned to thank me.
I enjoy every minute of my holiday.
Every students in the class must pass the exam.
希望以上可以帮到您.