求翻译：其次，学生在规定时间内完成对文章的阅读后，进行分组讨论（group work），四到五个学生为一组，讨论文章结构、大意、较难理解的词、词组和句子，学生还可对讨论后仍无法理解的知识设计问题。是什么意思？

Secondly, the students completed within the specified time, after reading the article, the group discussion (group work), four to five students in a group discussion of the article structure, to the effect, difficult to understand words, phrases and sentences, students can After discussion, the know