staple e food crop 主要粮食作物
Rice is the staple food crop in Zhejiang province.
水稻是浙江省主要粮食作物。
Rice is the foremost staple food crop in China and the largest water consumer in agriculture.
水稻是我国最大的粮食作物，也是农业上第一用水大户。
Maize is not only the staple food crop, but also an important raw material for feed and industry, nevertheless the threat of pests and weeds leads to a serious decline in its output and quality.
玉米是大宗粮食作物，又是重要的饲料和工业原料，由于虫害和草害的威胁，导致其产量和质量严重下降。
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