没有农业，人类便不能生存，社会生产也就不能继续下去。
But for agriculture, man could not exist, nor could social production proceed.
农业生产与人类生存密切相关。
Agricultural production is closely related with human survival.
没有农业，人们就不能生存，社会生产就不能继续下去。
Without agriculture, people cannot exist, neither can social production proceed.
农业如果不是以有效方式经营的话，生存就会有很大的困难。
Farms that are not run in a businesslike fashion have great difficulty surviving.
农业如果不是以有效方式经营的话，生存就会有很大的困难。
Farms that are not run in a businesslike fashion have great difficulty surviving.
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