Wagon trains — groups of wagons — rode in four lines across the land when they passed through dangerous country. If attacked, the wagons could quickly form a circle for defense.

马车队(即一群马车)，当他们经过危险区时，他们排成四排向前行进，如果遭受到攻击时，这些马车就会很快地形成一个保护圈进行抵抗。

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We made a circle around Ross Island and Mount Erebus and then headed west across the Sound toward Marble Point.

我们环绕着罗斯岛（Ross Island）和埃里伯斯火山飞行，然后向西越过海峡朝云石点（Marble Point）飞去。

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All across America from coast to coast the migrants wing their way towards the Arctic Circle.

穿越美洲，从海岸到另一侧的海岸，候鸟向北极圈振翼前行。

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Speaking to the Associated Press news agency, he said "it goes full circle across the whole spectrum - they're trying to find as many violations as possible".

BBC: Russian police raid rights group Memorial and other NGOs

"It goes full circle across the whole spectrum - they're trying to find as many violations as possible, " he added.

BBC: Mark Knopfler cancels Russia gigs in human rights protest

Outside the hotel, dusk began to settle over Central Park, and lights flickered on in the buildings across Columbus Circle.

NEWYORKER: Reversal of Fortune