The ground supported fewer plants, and the insects which lived on these plants died out.
地上长的植物少了,生活在这些植物上的昆虫就消亡了。
It must have been a gas that could burn but that would not explode, a gas that did not smell strong, and a gas that did not kill people.
它一定是一种能够燃烧而不能爆炸的气体,一种味道不很强的而且不使人致死的气体。
Among the different types of bee, it is the honey bee that has most interested scientists because of the language they use to communicate with each other.