美 [ɡraʊnd ˈlevl]
地面水平：与地面表面相同水平的位置。
ground level //
不可数名词 If something is at ground level, it is at the same level as the ground, as opposed to being higher up or below the surface. 底层
The hotel is set on three floors. There's a bar and cafe at ground level.
旅馆有三层楼。底层有个酒吧和咖啡厅。
The remaining section of woodland is cut down to ground level.
林地的剩余部分被砍光了。
the height of the ground on which something stands
同义词： grade
the floor of a building that is at or nearest to the level of the ground around the building
同义词： ground floor / first floor
地平面
地面层
地面水平
基级
基能级
地面高程
地面高
ground level 地面；地面水平；地面标高 ground level contour 地面水平等高线 ..
... emphatically强调的 断然的 有力的 ground level地平面 torrid炙热的 很热的 ...
ground level 地面；地面水平；地面标高 ground level contour 地面水平等高线 ..
出了机场航站楼后，走到地面层（ground level），位于机场航站楼对面街的停车场。到Alamo的租车柜台办理提车手续。
地平面，地水准平面；地面标高
The cables are buried one metre below ground level.
电缆埋在地平面下一米深的地方。
Very little light filters through the canopy of leaves and branches in a rain forest to reach ground level—or close to the ground—and at those levels the yellow-to-green wavelengths predominate.
在雨林中，很少有光透过树叶和树枝形成的树荫到达地面——或者接近地面——在这些高度上，黄色到绿色的波长占主导地位。
Most of the monkeys' food is found at ground level.
猴子的食物大多可在地面找到。
One of the biggest rooms below ground level is the kitchen.
VOA : special.2009.11.16
In the center,at ground level, is a round pool of water.
VOA : special.2009.05.25
So if we go to the ground state, what you see is we're at that lowest energy level, and we only have one possibility for an orbital, because when n equals 1, that's all we can do.
如果我们在基态上，你可以看到，我们在能量最低的态上，只有一种，可能的轨道，因为n等于1，只有这种可能。
化学原理课程节选 : 麻省理工公开课
Later,we visit rooms below ground level.
VOA : special.2009.11.16
Both have large studio spaces on the ground level that can work as bedrooms or offices.
The car was parked on the ground level of a parking garage near the store.
Thursday to find Ms. Steenkamp dead on the floor on the ground level covered in towels.