By the time the lessons of diversification had been learned, the population in Youngstown had fallen by half.
等到扬斯敦尝到教训时,人口已经减少了一半。
Was the time for diversification and the exploration of new markets.
年是市场多样化同时也是对新市场的探索时期。
Yang Tao said that, at this time, high-margin products as well as the diversification of the coal enterprises to be affected are relatively small.
杨涛称,在这个时候,产品毛利率高以及多元化经营的煤炭企业受影响的程度相对要小。
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