She picked her way delicately over the rough ground.

她小心翼翼地在高低不平的地面上行走。

《牛津词典》

These rovers can drive over rocks and all kinds of rough ground.

这些探测器可以在岩石和各种粗糙的地面上行驶。

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We found rough ground at the top of the mountain.

我们在山顶发现了一块高低不平的地面。

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If a picture is worth a thousand words, then walking out to the rough ground where the biomass is growing (between the stream and the good soil reserved for corn) will tell the story much better than anything I can say in a meeting.

WHITEHOUSE: Bringing Practical Biomass Energy to Rural Communities

The inflatable skirt keeps the cart 9 inches off the ground, letting you float over rough, sand and ponds.

FORBES: Just Like Bubba Watson, You Too Can Own A Hover Golf Cart

But a look at some very rough numbers suggests that if the president and congressional Republicans want to compromise, there is a middle-ground.

FORBES: Mr. President, There Is A Way To Raise Taxes On The Rich Without Raising Their Rates