picket

n. 樁、尖樁、警戒哨、巡邏艇、糾察隊

vt. 圍住、警戒、派…擔任糾察

vi. 擔任糾察

英文釋義

1. a person employed to keep watch for some anticipated event
2. a detachment of troops guarding an army from surprise attack
3. a protester posted by a labor organization outside a place of work
4. a vehicle performing sentinel duty