When oranges grow in Huainan, they become oranges; when they grow in northern Huaibei, they become oranges.

It means that the environment has changed and the nature of things has also changed.

"Yan Zi Chun Qiu·Za Xia No. 10": "Ying heard that oranges are oranges when they grow in Huainan, and they are oranges when they grow in northern Huaibei. The leaves are similar, but the taste is different. So what is the reason? The water and soil are different. also.

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