An official says that the church calls itself the Washington National Cathedral because many services of nationalinterest have been held there.
一名官员表示，该教堂自称华盛顿国家大教堂，因为许多与国家利益相关的服务都在那里举行。
2
American politicians have great difficult recognizing that admitting more foreign students can greatly promote the nationalinterest by increasing international understanding.
美国政界人士很难意识到，通过增进国际了解，招收更多的外国学生可以极大地促进国家利益。
3
The Roosevelt Administration believed that rebuilding the nation's soil was in the nationalinterest and was not simply a plan to help farmers at the expense of other citizens.