So, that's actually a great circle meridian of length, well, I mean, well, the radius is the radius of the sphere.

路程就是个大圆，我的意思是，这个圆的半径是球的半径。

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Two points determine a great circle on a sphere, so for any two points, cut the orange into half.

球面上的两点确定一条圆弧，因此任意两点可将橙子切成两块。

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The great-circle distance calculates the shortest distance between any two points on the surface of a sphere.

大圆弧长计算球面两点之间的最短距离。

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Myanmar is now deftly playing the same multi-alignment game mastered by countries such as Kazakhstan in trying to escape the Soviet-Russian sphere of influence: courting all sides and gaining whatever one can from multiple great powers and neighbors while giving up as little autonomy as possible.

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Mr Blunkett, a close ally of Mr Blair, argues in an article for the Observer that Mr Miliband's stated aim of making Labour a "one-nation party" should be "about a great deal more than politics built on grievance and the unhappiness of a resentful and selfish public sphere".

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