在离开15年后，我回到了教学岗位，处理着从学生书包里冒出来的各种各样的“禁果”。
I was back teaching after an absence of 15 years, dealing with the various kinds of "forbidden fruit" that come out of book bags.
目睹当今小学生书包的大小与重量，很多成年人都觉得自己的童年比他们现在的童年要快乐。
Just from the weight and size of school bags, many people believe they were happier as a child than the children are today.
小学生书包平均重4.2公斤，超过标准达百分之53.4 .书包标准重量等同学童重量的百分之十。
On average, a primary school pupil's school bag weighs 4.2 kg, 53.8 per cent heavier than the recommended weight - which is 10 per cent of a pupil's weight.
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