短語詞組短語Food Security Crop 糧食安全作物food -crop 糧食作物Food crop science 糧食作物學staple e food crop 主要糧食作物Food crop insurance 糧食作物保險Subsistence food crop 自給作物Upland food crop production 旱糧生産food crop production 糧食産量 返回 food crop