EFL stands for English as a Foreign Language. It is the usual name for teaching English to people who do not speak it as their first language and who do not live in a country where English is the everyday language of the street.

EFL stands forEFL是 English as a Foreign Language.「英語作為外語」的縮寫。 It is the usual name for teaching English to people who do not speak it as their first language這是用來稱呼「教英文給母語不是英文的人」的一般說法， and who do not live in a country where English is the everyday language of the street.而且這些人也不是住在英文是日常街頭用語的國家。

A learner in Taiwan, Italy, or Thailand is typically in an EFL setting: English is a school subject, not the language of the bus and the shop.

A learner in Taiwan, Italy, or Thailand is typically in an EFL setting:在台灣、義大利，或泰國學英文的人，通常就是處在EFL的情境裡： English is a school subject, not the language of the bus and the shop.英文是學校科目，不是公車上或店裡用的語言。

Teachers contrast it with ESL (English as a Second Language), used when the learner lives among English day to day — for example a newcomer in the UK or the US. The two boxes are tidier in textbooks than in real cities; some writers now prefer ELT (English Language Teaching) or “English as an additional language.” In Taiwan, almost all school English is EFL in this strict sense of the letters.

Teachers contrast it with ESL (English as a Second Language),老師會把它拿來跟ESL（英語作為第二語言）做對比， used when the learner lives among English day to dayESL用在學習者天天生活在英文環境裡的情況， — for example a newcomer in the UK or the US.——例如剛到英國或美國的新移民。 The two boxes are tidier in textbooks than in real cities;這兩個分類在教科書裡看起來很整齊，但現實城市裡沒那麼清楚； some writers now prefer ELT (English Language Teaching) or “English as an additional language.”有些學者現在比較喜歡用ELT（英語教學）或「英語作為附加語言」這種說法。 In Taiwan, almost all school English is EFL in this strict sense of the letters.在台灣，幾乎所有學校的英文課，嚴格照這個字母定義來看，都是EFL。