To the right species of bee, this looks like another very aggressive bee, and it goes and bonks it on the head lots and lots of times to try and drive it away, and, of course, covers itself with pollen.
この花は ある種のハチにとって 別の獰猛なハチのように見えるので 追い払おうと何度も頭をぶつけてきて 花粉だらけになります