沙滩上挖出石子的地方形成一个人形轮廓，有头、两个胳膊、躯干和腿，没有尾巴。

A human figure. A head, two arms, a torso, legs, no tail.

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AIRprint比正方形的纸巾盒还要小，里面放置了两个130万像素的摄像头和一个偏振光发射源。

Slightly smaller than a square tissue box, AIRprint houses two 1.3 megapixel cameras and a source of polarized light.

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创建一个新层画一个400 px高的长方形。这是用作我们网页页头的。

Create a new layer and draw in a big rectangle about 400px high.

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