The damage will be felt only in the longer term, since the main effect may be to delay the start of big infrastructure projects, from roads to irrigation schemes.
所以，损害只会在长期浮现，这将主要体现在大型基础建设项目的推迟，包括修路与灌溉项目。
2
Dry farming, irrigation farming, and the cattle and sheep herding are the main activities of the Great Plains of the American West.
旱地农业，灌溉农业和牛羊牧业是美国西部大平原地区的主要活动。
3
Dry farming ,irrigation farming,and the cattle and sheep herding are the main cativities of the Great Plains of the American West.