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- Petty Officer First Class 中士
- (U. S. Army) sergeant first class; (Brit. Army) staff sergeant; (U. S. Navy) petty officer first class; (Brit. Navy) chief petty officer; (U. S. Air Force) technical sergeant; (Brit. Air Force) flight sergeant; (U. S. Marine Corps) technical sergeant or s 上士
- Petty Officer, First Class 上士
- He always travels first class expense is no object. 他出门总是用头等票－－费用不成问题。
- She took a first class in Oxford. 她在牛津大学获得头等优异成绩。
- A petty officer assigned to maintain order. 监察干事被安排维持纪律的微不足道的军官
- Tom came to school late and missed the first class. 汤姆迟到且没有上到第一堂课。
- This ticket doesn't entitle you to travel first class. 你这张票不能坐头等位。
- A petty officer responsible for the navigation of a ship. 舵工负责船只航行的低级官员
- I'd like a first class ticket to Warsaw for this Sunday. 我要一张本星期日飞往华沙的头等机票。
- A petty officer performing chiefly clerical duties in the U.S.Navy. 文书军士美国海军中，主要做文书工作的小军官
- A U.S. Navy petty officer who is an assistant to a warrant officer. 下士美国海军作四级准尉助手的小官
- That article is an example of first class journalism. 那篇文章是一流新闻文字的范例。
- He became a chief petty officer specializing in radar. 他成为一个专攻雷达的下士。
- I sent the letter first class on Monday. 星期一我已把信用快递寄出。
- A petty officer performing chiefly clerical duties in the U.S. Navy. 文书军士美国海军中，主要做文书工作的小军官
- These hand embroider one is all first class goods. 这些手绣织品都是一等品。
- A petty officer on a merchant ship who controls the work of other seamen. 一个在商船上管理其它海员工作的海军士官。
- Can I transfer to a first class coach? 我可以换到头等车厢吗？
- The entertainment provided was first class. 提供的招待是一流的.
