导读 be based in = be located in “ 位于”；用法 sth be based in swhHe is a founding partner of the league based ...
be based in = be located in “ 位于”；用法 sth be based in swhHe is a founding partner of the league based in New York City.be based at =be based on建立在（⋯⋯的基础上）My confidence is based at my practice.。