古名: Ciudad de la Santísima Trinidad y Puerto de Santa María del Buen Aire
("City of the Most Holy Trinity and Port of Saint Mary of the Fair Winds"). The short form "Buenos Aires" became the common usage during the 17th century.
In the 1994 constitution, the city was given autonomy, hence its current formal name:
现代名称: Ciudad Autónoma de Buenos Aires
(Autonomous City of Buenos Aires).
摘自: 维基网页