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use sth as a decoy
They used a fake bird as a decoy to attract wild ducks.
他们用一只假鸟作诱饵来吸引野鸭。
诱饵；引诱者
decoys — plural of decoy
先理解核心含义，再看它在真实句子里的用法。
诱饵；引诱者
a person or thing used to lure someone into danger or into a trap
They used a fake bird as a decoy to attract wild ducks.
他们用一只假鸟作诱饵来吸引野鸭。
用来引诱某人陷入危险的人或物。
A person or object meant to lure somebody into danger.
诱人入险境者
a beguiler who leads someone into danger (usually as part of a plot)
猎人用来引诱猎物的真实或假动物。
A real or fake animal used by hunters to lure game.
诱饵
something used to lure fish or other animals into danger so they can be trapped or killed
The hunter set up a wooden decoy to attract ducks.
猎人设置了一个木制假鸭来吸引鸭子。
Police used a decoy to catch the thief in the act.
警方使用了一个诱饵当场抓获小偷。
In the video game, you can place a decoy to distract enemies.
在视频游戏中，你可以放置一个诱饵来分散敌人的注意力。
They used a fake bird as a decoy to attract wild ducks.
他们用一只假鸟作诱饵来吸引野鸭。
She acted as a decoy while the others hid the money.
她充当诱饵，其他人则把钱藏了起来。
The abandoned truck was a decoy to draw the police away.
那辆被弃的卡车是引开警察的诱饵。
“set up decoys”常用于军事语境，指布置诱饵或假目标。
The army set up decoys near the bridge to mislead the enemy.
军队在桥附近设置了假目标来迷惑敌人。
Not this
The hunter used decoy to attract ducks.
Use this
The hunter used a decoy to attract ducks.
decoy 是可数名词，表示‘一个诱饵’时需用 a/an；汉语没有冠词，因此学习者常漏掉冠词。
Not this
There were several decoy in the field.
Use this
There were several decoys in the field.
decoy 的复数形式是 decoys，在 several、many 等词后必须用复数。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
诱饵鸭（猎人用来引诱真鸭的假鸭）
He placed a decoy duck on the lake to attract real ducks.
他把一只诱饵鸭放在湖上来吸引真鸭子。
诱饵车（警方用来诱捕盗车贼的车辆）
The police parked a decoy car in a quiet street to catch thieves.
警方把一辆诱饵车停在僻静的街道上，以抓捕盗车贼。
警察诱饵（假扮成平民以引诱罪犯的警察）
A police decoy walked through the park at night to catch attackers.
一名警察诱饵夜间穿过公园，以抓捕袭击者。
诱饵弹（用于干扰导弹的军事诱饵）
The fighter jet released decoy flares to confuse the missile.
战斗机发射了诱饵弹来迷惑导弹。
充当诱饵
The soldier acted as a decoy to draw the enemy's attention.
那名士兵充当诱饵，以吸引敌人的注意力。
设置诱饵
The hunters set a decoy before dawn to attract game.
猎人在黎明前设置了一个诱饵来吸引猎物。
诱饵；引人上钩的人或物
The police officer acted as a decoy duck to catch the thief.
那名警察假扮成诱饵来抓小偷。
Use decoys naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
想象猎人把一只假鸭放在水面上，decoy 就是引诱猎物上钩的诱饵。
语域：neutral 常见场景：hunting、military、law enforcement 该词比较常见于捕猎、军事和执法等语境；语气通常中性，正式或口语中均可使用。具体含义依上下文而定，捕猎/捕鱼多指诱饵，军事上指假目标，日常也可指诱人陷入危险的人或物。
常与介词 as 或 for 连用，表示'作为诱饵'或'用于诱捕'。
Dictionary facts from ECDICT, WIKTIONARY.