____________________________________________Speaking at a naturalization ceremony for new citizens, Mr. Obama said new citizens continuing renewed and revitalized the nation. "We don't simply welcome new immigrants. We are born of immigrants. That's who we are. Immigration is our origin story. And for more than two centuries, it's remained at the core of our national character. It's our oldest tradition, it's who we are." _____________________________________在移民加入美国国籍的仪式上,奥巴马说道,新加入美国国籍的人将继续为美国带来新气象,新动力."我们不是简单地欢迎移民来到美国.我们就是移民的后代,身上流着移民者的血液.美国的建国史就是一部移民史.在200多年的时间里,移民政策是我们国家特征的核心,是我们最悠久的传统,是我们的民族之魂."