沸腾作用

例句：

1. 1.The soup was bubbling away on the stove.
   汤在炉子上咕嘟咕嘟地煮着。
2. 2. The pot of water is boiling over.
   这锅水正在滚开。
3. 3.The food needs to be boiled for 10 minutes before serving.
   食物需要在烹饪前煮沸10分钟。