问题描述：
stand back up on its feet在这段话是什么意思?
下面是听力原文（听译）President Obama is to run for a second term as US president in next year’s election.A short announcement on his website said the campaign was now getting underway.Analysts predict Mr Obama could raise an unprecedented one billion dollars to fight the election in November,2012.These New Yorkers gave their reaction to the news.‘He deserves another chance.He’s had a rough four years and it’s gonna take another four years for this country to stand back up on its feet.’
下面是听力原文（听译）President Obama is to run for a second term as US president in next year’s election.A short announcement on his website said the campaign was now getting underway.Analysts predict Mr Obama could raise an unprecedented one billion dollars to fight the election in November,2012.These New Yorkers gave their reaction to the news.‘He deserves another chance.He’s had a rough four years and it’s gonna take another four years for this country to stand back up on its feet.’
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