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The most valuable crop we can grow is trust between producers and consumers.
做义事也是这样,能演说的就演说,能讲书的就讲书,能做事的就做事,这样义事才可以成功。 
采石场应当在开采的同时治愈大地。
Language is not just a system of symbols, but a set of practices with social and cultural significance.