1. With so much debt, in addition to the uncertainty of future income, it is an X that how the 18 trillion can be guaranteed. 背负这么多的债务，加之未来财政收入的不确定性，如何保证18万亿投资计划实施，是一个未知数。
2. Recommend reasons: the company benefited from the construction industry country trillion yuan investment, domestic steel enterprises. 推荐理由：公司建筑业受益国家万亿元投资，是国内钢结构龙头企业。
3. The president said the United States is the largest exporter in the world, exporting a record $1. 4 trillion in goods and services in 2006. 总统提到美国是世界上最大的贸易出口国，2006年出口的货物和服务总值达到创纪录的1。4万亿美元。
英英解释
n.
1. a very large indefinite number (usually hyperbole)
2. the number that is represented as a one followed by 18 zeros
3. the number that is represented as a one followed by 12 zeros adj.
1. one quintillion in Great Britain
2. one million million in the United States
