| 单词 | crop production |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔constrain〕Poor soil has constrained the level of crop production.土地贫瘠限制了农作物的产量。朗文当代〔cover crop〕A crop, such as winter rye or clover, planted between periods of regular crop production to prevent soil erosion and provide humus or nitrogen.间作：在常规农作物生长间期内种植的农作物，比如冬麦或三叶草，以预防土壤侵蚀并能提供腐殖质和氮美国传统〔crop〕Crop production was low last year because of the lack of rain.由于缺少雨水，去年作物产量很低。韦氏高阶〔sustain〕The soil was so badly eroded it could no longer sustain crop production.土壤侵蚀得厉害，不能再种庄稼了。牛津搭配They were awarded grants to develop new methods of crop production.他们得到了一笔开发农作物生产新方法的经费。牛津商务 |
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