<prompt> Pedzisa mutsara unotevera: Pa2012 United States Olympic Trials muOmaha, Nebraska, muU.S. qualifying meet yeOlympics, Adams akaita chikwata cheU.S. cheOlympic kekutanga nekukunda 200-metre butterfly. Adams akakwikwidzawo mumakwikwi emamita mazana mana, uye akapedza wechitatu nenguva ye4: 38.62. Pa 2012 Summer Olympics muLondon, akapedza ari wechishanu mumakwikwi ekupedzisira e  <response>: yevakadzi yemamita 200-bhatafurayi. 