picket

释义

n. 桩, 尖桩, 警戒哨, 巡逻艇, 纠察队\nvt. 围住, 警戒, 派...担任纠察\nvi. 担任纠察

例句

There was a mass picket (= one involving a lot of people ) by students outside the main office of the university.

那所大学的主办公楼外有一支庞大的学生纠察队。