Have someone doodle a line for you, then challenge yourself to make a variety of cartoons based on that one line. Don't resort to drawing faces, though — those are usually too easy!

让别人给你画一条线，你试着沿这条线画漫画，不要只想着画一个人脸，那太简单了。

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x-heights. If you make a light weight and the black weight of one typeface you'll have to make sure that the black weight has a bigger x-height than the light weight (top line drawing).

如果你制作一个包含轻磅（细线体）和重磅（粗黑体）的字体，你应该确保粗黑体的x高度比细线体的略大（见图中上一行）。

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It is understood when using this easy to read drawing that one line represents three.

单线图单线图是用一条线来表示三相电力分布系统的示意。

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"One of the reasons we wanted to examine this now and start drawing a line is the technology keeps improving from year to year, " he adds.

WSJ: Little League Bans Composite Bats

The interest level is so high that last week, when a Chinese blog claimed to have gotten its hands on a 3DS and posted a line drawing of a device, "Nintendo 3DS" briefly became one of Google's most-searched terms.

CNN: Video gaming 'history' to be made this week at E3