The man on duty is to blame.

值班的人该受责备。

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Recently, automatic transfer switching equipment (ATSE) is widely applied because of its safety, fast switching and without man on duty.

由于双电源自动转换开关(atse)具有使用安全、转换迅速、无需值守的特点，近年来得到了广泛的应用。

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This system can overcome the difficulty in managing the public telephone with man on duty for it, and provide an effective solution method for management department.

介绍了一种应用计算机集散控制技术和模块化结构技术的公用电话集中计费管理系统 。

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The shoeshine man was still on duty.

CNN: Why a pundit wrote a novel

Thomas Warren told the newspaper that as he approached the courthouse entrance to report for jury duty, he saw what appeared to be the body of a man lying on his stomach.

CNN: 3 dead in Delaware courthouse shooting

They were in a fire-fight while on patrol in Helmand province in which an Afghan man, thought to be an off-duty policeman, also died.

BBC: Cpl Channing Day