冰岛有一个只有8每平方英里人口密度，第五最低。
Iceland has a population density of just 8 people per square mile, the fifth lowest.
作为全球最低成本的钢铁生产商，它有能力收购比它规模大的对手哥鲁氏，成为世界第五大钢铁制造商。
As the world's lowestcost steel producer, it was able to raise the money to buy Corus, its bigger rival, and become the world's fifth-largest steelmaker.
在欧洲航空公司里，爱尔兰航空公司票价最低，获选第五。
Of the Europe-based airlines, Aer Lingus fares best, coming fifth.
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