systematic agriculture造句

例句与造句

1. Systematic agriculture largely disappeared and yields declined.
2. Europe experienced a return to systematic agriculture in the form of the feudal system, which introduced such innovations as Barbarian migration stabilized in much of Europe, although the north was greatly affected by the Viking expansion.
3. While pre-Columbian natives may have lived in a disease environment substantially different from that in other parts of the globe, the original inhabitants also brought with them, or evolved with, enough pathogens to create chronic conditions of ill health under conditions of systematic agriculture and urban living.
4. It's difficult to find systematic agriculture in a sentence. 用systematic agriculture造句挺难的