After the Colorado river flooded in 1905, it took 1500 workers and half a million tons of rock to put the river back on course.

1905年科罗拉多河泛滥后，1500名工作者用了50万吨石头才把它归位。

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The horizontal lines across the top half of the image are intrusions of igneous rock, where magma poked up to the surface from deep underground.

照片的上半部是火成岩，由地球深处涌出地面的岩浆形成。

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The other half travel, play in rock bands that don’t make money, or otherwise engage in nontraditional “timeout” activities.

另一半则在履行，在摇滚乐队演奏或者是做一些非传统的消遣活动。

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Arches are formations that look like half a circle above an opening or hole in a rock.

VOA: special.2009.04.15

One huge rock is called Half Dome.

VOA: special.2009.01.07

Half soccer pub, half punk rock bar, Churchill's is 100% one of the most interesting spots in the city, an establishment that straddles lines of income, race and nationality - in a lot of ways, a microcosm for Miami itself.

BBC: Multicultural Miami

It was tied to a tree and was rubbing against a half-submerged rock.

NEWYORKER: Max at Sea

Music is only half of what rock legends KISS are about.

FORBES: KISS's Gene Simmons Teaming Up With Angry Birds