n.[数]长方形，矩形
He handed me a little rectangle of white paper.
他递给我一张小小的长方形白纸片。
Suppose the width of a rectangle is x metres.
设长方形的宽是x米.
A squared rectangle is a rectangle dissected into at least two squares.
方化矩形是指可以分割成至少两个正方形的矩形.
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