Teaching English as a foreign language (TEFL) is a constant headache to all the EFL teachers in the secondary vocational schools (SVS).是什么意思_Teaching English as a foreign language (TEFL) is a constant headache to all the EFL teachers in the secondary vocational schools (SVS).在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句