奥巴马每周电视讲话:总统呼吁应对气候变化威胁 Hi, everybody.This Monday, I'm heading to Alaska for a three-day tour of the state. 大家好！下周一，我将前往阿拉斯加州进行为期三天的访问。 I've been looking forward to this for a long time.Not only because Alaska is one 英语演讲 2020-09-08 hisen
