奥巴马接受总统候选提名演讲
'"That's the promise we need to keep. That's the change we need right now. So let me spell out exactly what that change would mean if I am President."...'
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