1、He became a chief petty officer specializing in radar.
他成為一個(gè)專攻雷達(dá)的下士。

2、A U.S. Navy petty officer who is an assistant to a warrant officer.
下士美國(guó)海軍作四級(jí)準(zhǔn)尉助手的小官

3、A petty officer performing chiefly clerical duties in the US Navy
文書軍士美國(guó)海軍中，主要做文書工作的小軍官

4、I left Bahrain as a petty officer 3rd class and completed a six-week officer candidate boot camp.
我作為上等兵離開巴林并且完成了一個(gè)為期六周的新兵訓(xùn)練營(yíng)長(zhǎng)官侯選人評(píng)選。

5、A petty officer performing chiefly clerical duties in the U.S. Navy.
文書軍士美國(guó)海軍中，主要做文書工作的小軍官

6、a petty officer on a merchant ship who controls the work of other seamen.
一個(gè)在商船上管理其它海員工作的海軍士官。

7、A petty officer responsible for the navigation of a ship
舵工負(fù)責(zé)船只航行的低級(jí)官員

8、A US Navy petty officer who is an assistant to a warrant officer
下士美國(guó)海軍作四級(jí)準(zhǔn)尉助手的小官