1. They swore their allegiance to the U.S. and received their naturalization papers. 他们宣誓忠诚于美国，随后收到了批准他们入籍的文件。
2. The Constitutional principles that Washington alone has the power to "establish a uniform Rule of Naturalization" and that federal laws precede state laws are noncontroversial. 只有华盛顿有权“建立统一的归化规则”和联邦法律先于州法律的宪法原则是没有争议的。
3. The Immigration and Naturalization Service lacks the resources, and apparently the inclination, to keep track of the estimated 2 million foreigners who have intentionally overstayed their welcome. 移民归化局缺乏资源，显然也不愿跟踪已估计的200万名故意逗留过久的外国人。
4. What we think of today as naturalization. 是今天我们认为的归化。
5. It was sort of a process of naturalization. 这是一种归化过程。
