They were used to outline figures to show boundaries just like you might use solid lines in a pencil drawing.

它们被用来勾勒图形以显示边界，就像你在铅笔画中使用实线一样。

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A vector drawing is like a pencil drawing where you take a pencil from one point to another and connect the points with straight lines, curved lines, rectangles, and ellipses.

矢量作图更像是用铅笔画画，先拿铅笔确定一些点，然后用直线、曲线、方框和椭圆框连接这些点。

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She would sit there drawing with the pencil stub.

她会坐在那儿用铅笔头画画。

《柯林斯英汉双解大词典》

I do a little bit of pencil drawing myself in miniature.

我自己会动手画一些微型铅笔画。

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