I'll mount guard over the luggage while you get the ticket.

你去买票，我来看管行李。

《新英汉大辞典》

By analyzing negotiation based coordination methods and Contract Net Protocol, the cooperation model of "station based on requirement, mount guard through competition" is presented.

在分析了基于协商的协作方法、合同网协商协议的基础上，提出了按需设岗，竞争上岗的协作模型。

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That was what it was thought I, to have the captain wounded; and again I blamed myself sharply for leaving them in that danger with so few to mount guard.

我认为这是船长负了伤的结果，于是我又一次责怪自己，不该在几乎派不出人放哨的时候撇下他们，使其面临这样的危险。

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