短語(yǔ)詞組短語(yǔ)subsistence agriculturesubsistence farming 生存農(nóng)業(yè)subsistence E farming 少有余糧既農(nóng)場(chǎng)經(jīng)營(yíng)highly subsistence farming system 高度自給的農(nóng)耕系統(tǒng) 返回 subsistence farming