The discovery of agriculture was the first big step toward a civilized life.
农业的发现是迈向文明生活的第一步。
-- Arthur Keith 阿瑟·基思
The discovery of agriculture was the first big step toward a civilized life.
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The discovery of agriculture was the first big step toward a civilized life.
农业的发现是迈向文明生活的第一步。
-- Arthur Keith 阿瑟·基思
