In northwest drought and desert area of our country, planting Elaeagnus angustifolia to amend salt alkali of soil and prevent sand blown by wind is an economic and effect measure.
在我国西北地区大面积的干旱、荒漠地区，营造沙枣林进行盐碱土改良和风沙危害的防治是既经济又有效的长远措施。
As if to remind you how environmentally unfriendly you are being by skiing here, the pistes are often a pale beige, regularly dusted as they are by fine sand blown in from the nearby Gobi Desert.
由于从附近戈壁滩吹来含有细小沙砾的风，这里的雪往往都是米白色的，就像在提醒你在这里滑雪对环境造成的危害。
But the city remains choked in a cloud of smoke made up of sand blown in from deserts, construction dust and, increasingly, by pollution from the swelling ranks of automobiles clogging city streets.
然而团团烟尘依然笼罩着这座城市，从沙漠吹来的沙尘、建筑尘土以及越来越多的汽车尾气都是形成这些烟尘的罪魁祸首。
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