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Picture books are like little pieces of art that you can hold in your hands.

I know how much work it takes to get to the top, but even more to stay there.

解釋：凡是有利的地方，雖然是極高的山，沒有不可以上去的；即令有極深的水，沒有不可以下去的。

質量和效率是提升競爭力的關鍵。