Study and teaching -- English language -- 3 Foreign speakers 2 Audio-visual aids 1 Chinese language -- 1 Computer network resources 1 Computer-assisted instruction 1 more ... Conversation and phrase books 1 Grammar 1 Pronunciation -- 1 Pronunciation by foreign speakers 1 Self-instruction 1 Study and teaching 1 Study and teaching for foreign speakers 1 Textbooks for foreign speakers 1 Vocabulary 1 tTechnological innovations 1 less ...