直到2002年，罗非鱼才勉强进入美国海鲜消费排名的前十，当时年人均消费量仅0.3磅。
The fish didn't even make the top 10 list of consumed seafood in the U.S. until 2002, when it squeaked by with average consumption of just 0.3 lb. a year.
如今，在哈萨克马铃薯是仅次于小麦的最重要粮食作物，年人均消费量为90公斤。
Today, the potato is Kazakhstan's most important food crop after wheat, with average per capita consumption of a high 90 kg a year.
计算人均消费量所带来的道德困境，并不仅限于粮食领域。它们也非常切合全球变暖问题。
The moral dilemmas thrown up by calculating per capita consumption are not confined to food. They apply just as acutely to global warming.
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