At the same time, people continue to treat fire as an event that needs to be wholly controlled and unleashed only out of necessity, says Professor Balch at the University of Colorado.

与此同时，人们仍然认为火是一种需要完全控制的事件，只有在必要的时候才能释放出来，科罗拉多大学的鲍尔奇教授说。