近二十年来，课堂纠正性反馈是二语习得研究领域的一个热门话题。
The study of corrective feedback in classrooms has been a hot point in the field of SLA in the recent decades.
没有废话，也没有花言巧语，尤其是当那是个坏消息或纠正性反馈时。
No BS, no sugarcoating, especially when it's bad news or corrective feedback.
通过向知识库提供反馈（对当前的分类进行确认或纠正），知识库的精确性可以随着时间的推移得以维持和提高。
The accuracy of a knowledge base can be maintained and improved over time by providing it with feedback -- confirmation or correction of the current categorization.
纠正反馈的作用一直是外语课堂研究的一个热点，但大多局限在口语课上，而对分析性外语课堂的研究较少。
The effect of corrective feedback has been a focus on the research of FLT, but it is mostly confined to oral class.
纠正反馈的作用一直是外语课堂研究的一个热点，但大多局限在口语课上，而对分析性外语课堂的研究较少。
The effect of corrective feedback has been a focus on the research of FLT, but it is mostly confined to oral class.
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