For example the square on hypotenuse of a right Angle triangle is equal to the sum of the squares of the other two sides.
例如，直角三角形斜边的平方，等于其它两边的平方和。
He ran square from the left before flicking the ball through at a right angle.
他从左路内切，然后轻弹皮球精准地挑射入网。
He ran square from the left before flicking the ball through at a right angle.
他从左路内切，然后轻弹皮球精准地挑射入网。
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