1
- a soldier or guard whose job is to stand and keep watch哨兵。
1.1
- figurative something that appears to be standing guard or keeping watch〈喻〉警戒物; 看守物。
1.2
- Medicine a thing that acts as an indicator of the presence of disease【医】哨点：
as modifier the first national HIV sentinel surveillance programme in the developing world.发展中国家的第一个艾滋病毒哨点监测计划。
(sentinelled, sentinelling; <美> sentineled, sentineling) with obj.
- station a soldier or guard by (a place) to keep watch派兵守卫（某地）：
a wide course had been roped off and sentinelled with police
用绳子围了一块宽阔场地, 并由警察看守着
figurative〈喻〉trees sentinelled the trenches.
树木守卫着战壕。
短语
stand sentinel
- (of a soldier) keep watch（士兵）站岗：
soldiers stood sentinel with their muskets
士兵们持枪站岗
figurative 〈喻〉 a tall round tower standing sentinel over the river.
一座高高耸立在河上方的圆塔。
词源
late 16th cent.: from French sentinelle, from Italian sentinella, of unknown origin.