A triangle is a basic drawing operation on which you can build more abstract operations.

三角形是基本的绘图操作，在此基础上可建立更为抽象的操作。

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However, such basic shapes fall short of expectations when it comes to some heavy duty vector drawing.

然而，当需要画一些复杂的矢量图时，这些基础图形就不够用了。

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The prior XHTML example (see Listing 1) showed you a very basic SVG drawing.

前面的 XHTML 例子（参阅 清单 1）为您显示了非常基本的 SVG 绘图。

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Sony offers up a couple of possible examples, including a crudely scribbled map, a basic math equation and a drawing of a cup of coffee, all of which ship with the device like those pictures of happy families that come with department store picture frames.

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They continue to ask basic altimeter questions on their tests--Which drawing shows 8, 500 feet? and so on--but with a cruel twist.

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They are understood to be drawing up creative plans ranging from cheap and basic warehouses for low-cost carriers such as easyJet to luxurious lounges aimed at winning the hearts of frequent-flying businessmen.

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