<prompt> Translate the following text to SwahiliHe did so with surety, using the elbow of his bad arm to steady himself at the threshold, then raising both fists in a stretch.  <response>: Alifanya hivyo kwa uhakika, akitumia kiwiko cha mkono wake mgonjwa kujitegemeza kwenye kizingiti, kisha akanyanyua ngumi zake zote mbili. 