图1是由数个同样大小的正方格所组成的。

Diagram 1 consists of several squares of equal size.

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图2是由同样大小的正方格所组成的。

In Diagram 2, the shaded region is drawn on squares of equal size.

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图2是由同样大小的正方格所组成的。

In Diagram 2, the shaded region is drawn on squares of equal size.

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