沙荒的英文怎么说
沙荒的英文：sand dune area
sandy waste
sandy wasteland
sand是什么意思：
n. 沙；沙滩
v. 用砂纸磨光；撒沙于；被沙堵塞
[*]They panned off the sand and dirt.
他们用淘金盘淘去砂泥。[*]Sift gold from sand.
沙里掏金。[*]Sand castle damages easily.
沙堡容易受到损坏。dune是什么意思：
n. 沙丘
[*]At some higher velocity the ripples or dunes disappear and the bed becomes flat
流速增大时，沙纹、沙垄消失，河床变平。[*]In the upper reach the bed was dune covered and in the lower reach it was flat
上游河段的床面为沙垄所覆盖，而下游河段则为平整床面。[*]Soundlessly the Sikorski circled the dunes, its fans driving the fine sand down the slopes.
这架西科尔斯基号直升飞机悄无声息地在沙丘上空盘旋，螺旋桨把细沙吹下了斜坡。area是什么意思：
n. 面积；地区；区域；场地；领域，范围，方面
[*]This is a drainage area.
这里是排水区。[*]The areas of greater rainfall conform roughly with these forested areas.
降雨量较大地区大致与这些森林地区相符合。[*]The?penalty area?is the rectangular area in front of the goal.
禁区就是指球门前的矩形区域。
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