The security guard acted as a sentinel at the entrance.
保安在入口处充当哨兵。
We placed a sentinel to watch over the campsite at night.
我们安排了一名哨兵在夜间看守营地。
The castle had a sentinel posted at each tower.
城堡的每座塔楼都有一个哨兵。
He stood as a sentinel while his friends explored the cave.
当他的朋友们探索洞穴时，他站在那儿当哨兵。
A lone sentinel guarded the ancient ruins at dawn.
黎明时分，一名孤独的哨兵守护着古老的废墟。
The soldier was assigned to be a sentinel overnight.
士兵被分配为夜间的哨兵。
The lighthouse served as a sentinel for passing ships.
灯塔为过往船只充当哨兵。
Each sentinel was equipped with a radio for communication.
每个哨兵都配备了无线电用于通讯。
They relied on their dog as a sentinel at the farm.
他们依靠他们的狗在农场当哨兵。
The ancient tree stood like a sentinel in the forest.
这棵古树像哨兵一样矗立在森林中。
sentinel node 哨兵节点
sentinel loop 哨兵循环
sentinel monitoring 哨兵监控
sentinel check 哨兵检查
sentinel process 哨兵进程
sentinel event 哨兵事件
复数: sentinels;
