柯林斯词典fire hydrant (fire hydrants) 1. N-COUNT A fire hydrant is a pipe in the street from which firefighters can obtain water for putting out a fire. 消防栓 返回 fire hydrant剑桥词典a large pipe in the street that firefighters can get water from to use to stop fires from burning 消防栓；消防龙头 返回 fire hydrant