这些反应增加了不完全燃烧的可能性，更有可能释放未燃尽和光化学活性碳氢化合物到大气中。
These reactions increase the probability of incomplete combustion and are more likely to release uncombusted and photochemically active hydrocarbon compounds into the atmosphere.
我们曾试着燃烧化学物质，观察火焰的颜色。
We once tried to burn the chemicals and watch the colors of the flames.
这个茶包放进有化学介质的杯子里就会燃烧，然后杯子就被点亮了。
If you put the lighting bag in a cup of chemical intermediate, the tea bag will burst into flames, and then the cup is lighting.
应用推荐