Crackly describes a thing that makes those repeated short sounds, or that feels as if it would: the sound of something burning in a fire, dry leaves, cheap paper, or a bad phone line. A crackly radio is one that keeps breaking into tiny sharp noises so the song is hard to hear. A crackly bag or a crackly dry leaf has that same quality when you touch it. It is an adjective, a way of naming the quality, not the action. The verb is crackle; the thing is crackly. It is a homely, physical word, more at home in everyday talk than in a science paper.

劈啪作響的。