1、
The air seemed thin , _________ though its combination of gasses had little oxygen left.
空气似乎很稀薄, 好像在混合的气体中剩下的氧气很少.
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2、
3、
4、
The only remaining option is to have the Fed create new money out of thin air.
于是,剩下的唯一选择就是让美联储凭空造出新钱.
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