His research areas involve sociolinguistics, discourse analysis, and teaching of the English language.
研究课题涉及社会语言学、语篇分析，英语语言教学等领域。
It is necessary to give prominence to the discourse teaching in the English classes.
在英语课中突出语篇教学的地位是十分必要的。
It is necessary to give prominence to the discourse teaching in the English classes.
在英语课中突出语篇教学的地位是十分必要的。
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