请问怎么区分动词做伴随时+ing与动词+ing做定语修饰的用法?不从语义只从语法角度分析
比如,an expanding cloud of energized particled ejected from the Sun recently triggered a large storm in the magnetic field that surrounds Earth, brighteningthe Northern Light.
如果语义上都能解释通,句中的brightening是修饰前面的earth还是做triggered的伴随?虽然修饰earth语义不通,但我想知道这样有没有语法上的合理性?