问题描述：
$1,000,000,000,000读作 a thousand billion, one thousand billion(美作:a trillion,one trillion)
$1,000,000,000,000 是读作a thousand billion, one thousand billion(美作:a trillion,one trillion),还是读作one million million
$1,000,000,000,000 是读作a thousand billion, one thousand billion(美作:a trillion,one trillion),还是读作one million million
问题解答：
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