 
<translate> Don a amsa wannan tambayar, ka yi la'akari da wannan: Brooklyn Dodgers da Los Angeles Dodgers sun yi wasa sau 19 a gasar World Series, yayin da New York Giants da San Francisco Giants suka yi wasa sau 20 kuma an gayyace su sau 21. Amsar ita ce sau 19. <eng> To answer the question, consider the following: The Brooklyn Dodgers and Los Angeles Dodgers have collectively appeared in the World Series 19 times, while the New York Giants and San Francisco Giants have collectively appeared 20 times and have been invited 21 times. So, the answer is 19 times. 