现在,森林会经常由于各种原因引发火灾。扑灭大火不仅需要很高的成本,有时还会失去人们的宝贵生命,所以,我想发明一种森林灭火器。森林灭火器体积小、质地轻,能像蒲公英的种子一样飘动,只要在飞机上洒下,它就密布地散在森林各处。当它一遇到火,就会膨胀,产生化学反应,变成灭火器中的 Forests now often cause fire for a variety of reasons. Fighting out a fire not only costs a lot of money, but it sometimes loses people’s precious lives, so I want to invent a forest fire extinguisher. The forest fire extinguisher is small in size and light in texture and flutters like dandelion seeds, leaving it scattered throughout the forest as long as it is dropped on the plane. When it encounters fire, it expands, produces a chemical reaction, and becomes a fire extinguisher