n. 桩, 尖桩, 警戒哨, 巡逻艇, 纠察队
vt. 围住, 警戒, 派...担任纠察
vi. 担任纠察
英文释义
n. a detachment of troops guarding an army from surprise attack
n. a protester posted by a labor organization outside a place of work
n. a vehicle performing sentinel duty
n. a wooden strip forming part of a fence