| 摘要 |
A plastic jigsaw puzzle includes several pieces, and a base plate; the pieces are made of plastic and pervious to light; each of the pieces has an image layer sandwiched therein, and several fitting portions on an edge thereof such that the pieces can be pieced together with adjacent ones of the fitting portions being fitted together; furthermore, those of the fitting portions of the pieces that face in the same direction have the same shape; the base plate is made of plastic and pervious to light; the base plate has a protruding border, and a transparent middle portion encompassed by the protruding border; the protruding border has an image layer sandwiched therein, and several fitting portions for the fitting portions of the pieces to fit in.
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