A lot of research reveals that anyone who wants to offer sufficient interpretation of second language acquisition has to take the critical factor-language transfer into consideration (Gass & Selinker, 1992).

• 大量的研究表明，人们要对第二语言习得现象做出充分的解释，就必须要考虑语言迁移这一因素(Gass & Selinker，1992)。