"TED English Audio-visual Speaking" aims to improve learners' basic audio-visual speaking skills, effectively improve students' ability to communicate and communicate in English in study, life and work, and comprehensively improve their English application ability.
English belongs to the West Germanic branch of the Germanic family of Indo-European language family, which spread to all parts of the world through active English colonization.
Due to contact with many national languages in history, vocabulary has changed from unitary to pluralistic, grammar has changed from "more inflections" to "less inflections", and pronunciation has changed regularly.
According to the number of native speakers, English may be the third largest language in the world, but it is the most extensive second language in the world.