He kicks up some dirt with his hind legs, then pats it into a little circular dam with his fore feet. He smooths out the bottom by rubbing it with his belly.
牠們趴在濕潤的地上，用後肢踢開泥土，再換成前肢把鬆軟的土推成一道圓形擋水土堤，就在前肢、後肢團團轉的時候，腹部也把洞底磨得平滑。