The central meaning shared by these nouns is . a line defining the boundary and shape of an object, a mass, or a figure.
这些名词的中心意思为。确定一个物体、群体或体形的界限和形状的线。
The central meaning shared by these nouns is . a line defining the boundary and shape of an object, a mass, or a figure.
这些名词的中心意思为。确定一个物体、群体或体形的界限和形状的线。
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