He became a chief petty officer specializing in radar.

他成为一个专攻雷达的下士。

Or maybe you prefer the cybernetically enhanced, such as Halo's Master Chief Petty Officer John-117.

或许你更喜欢有着强化的控制力的角色，例如《光晕》中的士官长 John-117 海军士官。

“We’re making sure that everybody is aware of what’s in store for them, ” says US Coast Guard Senior Chief Petty Officer Steve Carleton.

我们想让每个人都意识到为他们储备了什么。 “海岸警卫队的二级军士长史蒂夫.卡顿说。

Mark a master chief petty officer and the ranking noncommissioned officer on the operation crouched on one knee beside the open door of the lead helicopter.

一级军士长、此次任务未授衔负责人Mark单膝跪在领头直升机打开的门侧。