boiler stay tap

例句：

1. 1. The boiler is the heartof the heating system.
   锅炉是供暖系统的心脏。
2. 2. I need to turn off the tapand clean the faucet.
   我需要关掉水龙头并清洗水龙头。
3. 3. Thewater in the tap isrunning out quickly.
   水龙头里的水正在快速流出。