n.给水栓;水龙头;消火栓
I attached the hose to the hydrant and watered the flowers in the garden. 我把水管接上水龙头,浇了园子里的花。
On every floor there is a fire hydrant. 每个楼层都有消火栓。
It is not lawful to park in front of a hydrant. 在消火栓前停车是不合法的。