primary industry
noun /ˈpraɪməri ɪndəstri/
/ˈpraɪmeri ɪndəstri/
[uncountable, countable] (economics- the section of industry that provides raw materials to be made into goods, for example farming and mining
compare secondary industry, tertiary industry第一产业(指农业、矿业等生产原材料的产业)