English for specific purposes
（重定向自English for Special Purposes）
English for specific purposes (ESP), not to be confused with specialized English, is a sphere of teaching English language including Business English, Technical English, Scientific English, English for medical professionals, English for waiters, English for tourism, English for Art Purposes, etc. Aviation English as ESP is taught to pilots, air traffic controllers and civil aviation cadets who are going to use it in radio communications. ESP can be also considered as an avatar of language for specific purposes.