SE (English as a Foreign Language) the teaching of English to people whose first language is not English, and who do not live in an English-speaking country 作为外语的英语教学，非母语的英语教学
Examples from the Corpus
EFL• The author, Tom Hutchinson, is a highly experienced EFL teacher and teacher trainer.• June to September is open season for EFL students.• What is EFL - and what's so clever about teaching it?• Fragmentation is a problem because the vast majority of EFL schools are very small.• So in personal and professional terms EFL can feel good.• For appearances' sake I maintained the fiction that I was setting up an independent enterprise in the EFL field.• Similarly in those nationalised industries which are monopolies, the EFL may be met simply by raising prices.