On one part of the screen, a symbol would appear, and on the other side two symbols inside a circle were shown.

在屏幕的一侧会出现一个符号，而在另一侧，会显示圆圈内的两个符号。

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Any two diameters of a circle intersect each other.

圆周内两直径必相交。

《新英汉大辞典》

Two wrestlers stood in a circle of Shouting onlookers and sized up each other.

两个摔跤手站在一圈嚣叫的旁观者中心，互相打量着对方。

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These two cannons,however, were on a part of the ship that could turn in a complete circle.

VOA: special.2009.09.10

There is even a smattering of apps for couples, for those wanting to get even closer to the other member in their tight knit romantic social circle of two.

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The latest instalment involves the closure of the Circle Line for two months of essential repairs at the height of the tourist season, underlining the parlous state of both its management and its infrastructure.

ECONOMIST: Transport

Moreover, millions of these planets may circle two stars an arrangement considered so unlikely that until a few months ago it was found only in science fiction according to a separate finding by astronomers using NASA's Kepler space telescope that was published online Wednesday in Nature.

WSJ: Galaxy Hosts 100 Billion Planets, in New Estimate