【奥巴马每周之声演讲】2009-05-16
'But we know that our families, our economy, and our nation itself will not succeed in the 21st century if we continue to be held down by the weight o...'
听力计划063
猫姐问早安-听力一起练
猫姐问早安,听力一起练
猫姐问早安--听力一起练