1.why fossilization occurs in second language learning.2.Use examples to show how markedness theory is used to analyse linguistic universals.嘿嘿……我要的不是翻译，
问题描述：
1.why fossilization occurs in second language learning.
2.Use examples to show how markedness theory is used to analyse linguistic universals.
嘿嘿……我要的不是翻译，
答