A circle is in a square.

正方形里有一个圆。

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Or, bake your cake batter in a 9-inch square and a 9-inch circle pan (the square pan must have sides the same length as the circle's diameter).

或者，在一个9平方英尺和9英尺圆的平底锅里烘烤你的蛋糕糊。

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First, participants reclined and arranged themselves in a circle or square.

第一、参与者躺坐在一起，围城一个圆形或者一个方形。

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Whenever you see a particle moving in a circle, even if it's at a constant speed, it has an acceleration, v square over r directed towards the center.

只要看到质点做圆周运动,即使是匀速圆周运动,也存在一个加速度,大小为 v^2 / r,方向指向圆心

耶鲁公开课 - 基础物理课程节选

We know it's going around in a circle because if I find the length of this vector, which is the x-square part, plus the y-square part, I just get r square at all times, because sine square plus cosine square is one.

我们之所以知道它做圆周运动,是因为我求出了这个矢量的模长,也就是 x 的平方加上 y 的平方,我就得到了它在任意时刻的模长平方,因为正弦平方加余弦平方始终等于1

耶鲁公开课 - 基础物理课程节选

It will be the first "Romeo and Juliet" on Broadway since Paul Ryan Rudd and Pamela Payton-Wright played the doomed lovers in a 1977 Circle in the Square production.

WSJ: Bloom, Rashad in Broadway's 'Romeo and Juliet'

This may explain why the stand-in Czech prime minister, Jan Fischer, seemed to be trying to square a circle when he said today in Prague that his technocratic government would take his demand for a footnote to the October summit only if they had a promise of no more funny business from the president.

ECONOMIST: European politics

To succeed in India, outsourcers must square this circle.

ECONOMIST: Domestic outsourcing in India