陈建平(2010)认为商务英语的主要理论理据有专门用途英语理论(ESP)、应用语言学理论、功能主义语言学理论和语言经济学理论。
Chen Jianping ( 2010 ) argues that the main theory of Business English comes from ESP , Applied Linguistics , Systemic Functional Linguistics and Economics and language .