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单词 sentry
释义
sentry
noun[C]
uk
/ˈsen.tri/us
/ˈsen.tri/
asoldierwhoguardsaplace, usually bystandingatitsentrance:
岗哨；哨兵
Mysquadwere on sentrydutylastnight.我的班昨天晚上站岗放哨。
Synonym
sentinelliterary
Compare
guardnoun(PERSON WHO PROTECTS)
lookout
picture of sentry
Chalabala/iStock Editorial/Getty Images Plus/GettyImages
SMART Vocabulary: related words and phrases
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  • chaperone
  • custodian
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  • defence mechanism
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You can also find related words, phrases, and synonyms in the topics:

Soldiers & people who fight in wars
(Definition ofsentryfrom theCambridge Advanced Learner's Dictionary & Thesaurus© Cambridge University Press)

sentry| American Dictionary

sentry
noun[C]
us
/ˈsen·tri/
asoldierwhoguardsaplaceandpreventsthose who are notallowedin fromentering:
Sentriesstoodguardat thepalace.
(Definition ofsentryfrom theCambridge Academic Content Dictionary© Cambridge University Press)

Examplesofsentry

sentry
Discovering an unpredictedsentry(s) while moving along the created path can be easily accommodated.
From theCambridge English Corpus
At each free-space cell, the visibility risk cost to eachsentryobserving that cell is calculated.
From theCambridge English Corpus
The calculated visibility cost of thatsentryat each affected cell is added to the previously stored cost.
From theCambridge English Corpus
The robot is exposed to thesentryat a far distance where it is more covert than the other shortcuts to the goal.
From theCambridge English Corpus
The new path is hidden from the knownsentrybut is still cautious from the unknown ones, as compared to the short path.
From theCambridge English Corpus
The approach has shown its capability of adapting with different levels of knowledge about both the operating environment and the sentries' locations.
From theCambridge English Corpus
This ability is important as it allows the robot to immediately maintain its covertness once it gets in the view field of an unpredictedsentry.
From theCambridge English Corpus
The estimated value at any location represents the risk level of being exposed to one or more sentries.
From theCambridge English Corpus
The approach depends on estimating a cost value at each free-space location that presents the risk of being seen by anysentry.
From theCambridge English Corpus
The shortest path on the other hand is exposed to all sentries.
From theCambridge English Corpus
It's in the middle of their line, like asentrystanding guard.
From theCambridge English Corpus
Only the cells that are in the view field of the discoveredsentryare updated in the visibility map.
From theCambridge English Corpus
Different applications would have different visibility risk factors that should be taken into account, other than simply being/not being observed by asentry.
From theCambridge English Corpus
The final visibility cost at a cell would be the sum of all visibility costs calculated for each of its observing sentries.
From theCambridge English Corpus
A short (dashed-line) path is observed by one of the sentries.
From theCambridge English Corpus
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
#https://dictionary.cambridge.org//dictionary/english/sentry##
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更新时间：2025/2/5 17:49:42