Fellow-Citizens of the United States:in compliance with a custom as old as the Government itself, 按照一个和我们的政府一样古老的习惯， I appear before you to address you briefly and to take in your presence the oath pr
Now let's talk about costs. 现在让我们谈谈成本问题。 An energy-intensive version of this technology could cost you as much as $1,000 a ton just to capture it. Let's translate that. 如果仅仅为了捕获一吨二氧化碳而选择在该技术上投入大量能源，其花
美国总统奥巴马美国国旗日和国旗周公告 Presidential Proclamation on Flag Day and National Flag Week June 10, 2011 美国总统奥巴马美国国旗日和国旗周公告 2011年6月10日 On June 14, 1777, the Second Constitutional Congress adopted a flag with thi
