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�ܽ�˹�������@����Ӣ�Z����ͨ���Z�ԣ��B�Ⱥ����ݡ���Ӣ����Ҫ���£� In essence this is a book about language change and the responses it elicits among speakers of a language.Its specific focus is English as a Lingua Franca(ELF)��and in particular,though not exclusively,ELF accents.The concept of ELF iS discussed extensively in Chapter I��but for the moment��SUffice it to say that ELF and EIL(English as an Intemational Language)are one and the same phenomenon��and that both refer tO lingua franca uses of English primarily among itS non.mother tongue speakers.The term ELF has recently become the favoured one for reasons that are explained in Chapter I.By contrast��at the time 1 wrote my first book on the subject��The Phonology of English as an International Language��few people had heard of ELF��and for that reason��I chose then tO use the term EIL.(See Jenkins Z000��II.)