<prompt> Translate the following text to EnglishKwa kuongezea, kiwango cha ndoa kati ya wazungu na weusi kinashindwa kwa kiasi kikubwa kuliko kiwango cha ndoa kati ya wazungu na jamii nyingine zisizo za weusi.  <response>: Whats more, the white-black marriage rate lags significantly behind rates of white intermarriage with other, nonblack races. 