Take the 1982 launch of Diet Coke, the "new product of the decade." As successful as Diet Coke is, the company has paid a big price.
就拿1982年推出的“划时代的新产品”轻怡可乐/Diet Coke为例，由于轻怡可乐的成功，可口可乐公司为此付出了很大的代价：普通可乐的销量很快下降了。
As a kind of by-product in refinery, petroleum coke has not been effectively used for a long time. And many researchers try their best to develop it.
石油焦作为一种迄今为止还未得到有效利用的石油炼制副产物，多年来一直是人们努力开发的对象。
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