If the shape looks more like a rectangle, that means you have flat feet.
如果形状看起来更像一个长方形，这意味着你有扁平足。
For protection from the summer sun, the Mojave lived in open-sided, flat-topped dwellings known as shades, each a roof of poles and arrow weed supported by posts set in a rectangle.
为了躲避夏季的阳光，莫哈韦人住在遮荫的开放式平顶住宅里，每个遮阳棚都由一根杆子和一个箭头杂草组成，并由一个矩形的柱子支撑。
A new kind of rectangle flat-shell element, GCTTRS24, for thick and thin shells was constructed.
构造了一种新的厚壳和薄壳通用的矩形平板壳元gcttrs24。
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