the pickets + [verb] + [prepositional phrase]
指抗议人员时常用复数形式；常用动词有 stand、gather、wait 等。
The pickets stood outside the factory all morning.
纠察队员整个上午都站在工厂外面。
罢工纠察队员；纠察；哨兵；警戒哨；警戒部队；（登山用的）冰雪固定桩；皮克牌（一种纸牌游戏）；插入地面的桩。
a pointed stake or post driven into the ground, as in a fence
插入地面的桩。
A stake driven into the ground.
受雇守望某个预期事件的人
a person employed to keep watch for some anticipated event
登山中插入雪中用作锚或止滑的工具
A tool in mountaineering that is driven into the snow and used as an anchor or to arrest falls.
守卫军队以防突袭的分遣队
a detachment of troops guarding an army from surprise attack
部署在阵地前线的士兵或部队以警告敌人进攻；或执行类似功能的任何单位(如飞机或船只)。
One of the soldiers or troops placed on a line forward of a position to warn against an enemy advance; or any unit (for example, an aircraft or ship) performing a similar function.
劳工组织派在工作场所外的抗议者
a protester posted by a labor organization outside a place of work
哨兵
A sentry.
罢工期间在办公室、工作场所等外面抗议的抗议者(通常为复数)；也指抗议活动本身。
A protester positioned outside an office, workplace etc. during a strike (usually in plural); also the protest itself.
纸牌游戏 piquet
The card game piquet.
The workers formed a picket line outside the factory.
工人们在工厂外形成了纠察线。
用法提示：这里'picket'用作名词，指由罢工工人组成的纠察线。
Several pickets were arrested for blocking the entrance.
几名纠察员因堵塞入口被捕。
用法提示：这里'pickets'是复数形式，指罢工纠察员。
The company hired security to confront the pickets.
公司雇佣保安来对抗纠察员。
用法提示：这里'pickets'指罢工纠察人员，作为名词。
指抗议人员时常用复数形式；常用动词有 stand、gather、wait 等。
The pickets stood outside the factory all morning.
纠察队员整个上午都站在工厂外面。
picket line 是罢工或抗议时设置的纠察线；cross the picket line 是固定搭配。
She refused to cross the picket line.
她拒绝越过纠察线。
picket duty 常见于军事或安保语境，指站岗放哨。
Two soldiers were on picket duty near the bridge.
两名士兵在桥附近执行警戒哨任务。
这个搭配强调参与纠察行动，与 cross the picket line 相对。
Many workers were on the picket line during the strike.
罢工期间，许多工人都在纠察线上。
picket 特指罢工时在工作场所外纠察的人；protester 涵盖一切抗议者，使用面更广，但失去“纠察”的具体地点和罢工背景。
demonstrator 强调公开集会或游行示威，picket 则是固定在一处（如楼外）的纠察；二者侧重点不同。
grammar · medium
易错句子The garden is surrounded by a wooden picket.
正确表达The garden is surrounded by a wooden picket fence.
picket 只表示打入地面的单根尖桩，不表示完整的围栏；表示用尖桩做成的围栏时，英文要用 picket fence，不能把 picket 单独当作 fence。.
grammar · medium
易错句子The workers are standing on the picket outside the factory.
正确表达The workers are standing on the picket line outside the factory.
表示罢工时在工厂门外组成的纠察线，固定搭配是 picket line，常用 on the picket line；picket 单独指纠察队员或纠察活动，不能放在 on the 后表示‘纠察线’。
picket 作名词常指‘尖桩’或‘纠察队员’；piquet 是纸牌游戏名，拼写相似但读音重音在第二音节，切勿混用。
picket 与 pocket 只差一个字母，前者是‘桩/纠察’，后者是‘衣服口袋’；注意拼写中 i 与 o 的区别。
picket 是插入地面的桩，pike 是手持长矛或尖刺，一个偏工具/建筑，一个偏武器，意义场景不同。
纠察线；罢工纠察线
The workers formed a picket line outside the factory gate.
工人们在工厂大门外组成了纠察线。
尖桩栅栏
A white picket fence stood in front of the old house.
老房子前立着一道白色尖桩栅栏。
警戒任务；哨兵勤务
The platoon took turns on picket duty during the night.
这个排夜间轮流执行警戒任务。
抗议标语牌
The strikers held up picket signs as the buses passed.
公交车经过时，罢工者举起抗议标语牌。
picket + line
picket + fence
picket + -er
picket + -ing
picket + duty
罢工是picket抗议行动常见的背景活动。
工会常常组织成员设置picket纠察线。
示威游行与picket同为集体表达诉求的公开活动。
picket的核心目的是显示工人之间的团结一致。
谈判通常与picket抗议交替使用，作为解决劳资争议的手段。
越过纠察线（指在罢工期间去上班或不支持罢工者）
The union warned that anyone who crossed the picket line would be fined.
工会警告说，任何越过纠察线的人都将被罚款。
在纠察线上进行抗议（指参加罢工游行）
Striking workers walked the picket line outside the factory gates.
罢工工人在工厂大门外进行纠察抗议。
白色尖桩篱栅（象征理想的中产阶级家庭生活）
She wanted a quiet suburban life with a white picket fence.
她想要一种安静、配有白色尖桩篱栅的郊区生活。
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.