VERB
（通常指工会成员）在…设置罢工纠察队，在…外抗议
When a group of people, usually trade union members, picket a place of work, they stand outside it in order to protest about something, to prevent people from going in, or to persuade the workers to join a strike.
例句
The miners went on strike and picketed the power stations...
矿工开始罢工，并在发电站周围设置了纠察队。
100 union members and supporters picketed outside.
100名工会成员和支持者在外头抗议。