Theoretically it is classified into ESP and 1ocated between EAP and EOP by domestic English experts, and it is called EPP. 在理论上被界定为专门用途英语分支下，介于学术英语与职业英语之间的业务用途英语。
ESP came into being as a result of language training for immigrants and professionals. 摘要专门用途英语起源于国外对移民进行的语言培训和职业教育中的特别语言特征培训。
