@@ Second language (L2), in a broad sense, is a language learned or acquired after the native language.The term has a narrow sense when it contrasts to the term"foreign language"(FL), in which second language"functions as a recognized means of communication among members who speak some other language as their mother tongue", and the foreign language"plays no major role in the community and is primarily learnt only in the classroom."[1]Ignorance of the differences will result in confusion in the practice of language learning, teaching and research work.
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机译:Differences Between Solitary Cells and Colonial Cells in the Heteromorphic Life Cycle of Phaeocystis globosa:Morphology,Physiology,and Transcriptome
机译:中国双重上市公司a、h股价差影响因素的实证研究 =An Empirical Study on the Influence Factors of Price Difference between A-share and H-share of China's Dual-listed Companies