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未来的文具盒早已焕然一新啦!不信?我带你去瞧瞧。看!文具盒表面的图案正随着时间的变化而变化呢!文具盒的右上角有一个小洞,你可别小看它,它可以根据当天的气温变化而推算出第二
The future of the stationery has long been a brand new! Do not believe? I'll take you to see. Look! The pattern on the surface of the box is changing over time! There is a small hole in the upper right corner of the box, you can not underestimate it, it can be calculated according to the day's temperature changes in the second