今年热门的行业几年后很可能会成冷门，这是常事。
Way too often what is hot this year won't be hot a few years from now.
因为在大的市场也有生意不好的商家，再冷门的行业也有行业巨头。
Because of the large market also has good business business, then the popular industry also has industry giants.
往年热点的行业几年后很可能会成冷门，这是常事。
Way too often what is hot this year wont be hot a few years from now.
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