求翻译：第二、教师精讲点拨。教师的精讲点拨可谓把关的一环。在“第二次备课”的基础之上，教师将学生自学及讨论中所存在的共性问题进行简明扼要的讲解，从而使抽象繁杂的英语语法具体化、系统化、规律化，以便于学生更深刻地理解、掌握、运用所学语法内容。教师的讲解切忌重复，对于学生已经通过自学能够掌握的内容决不再讲。讲解中要注重启发式教学，充分调动学生思维的积极主动性，使师生活动紧密融合在一起，教师讲得巧妙，学生学得高效。是什么意思？

Second, teachers Jingjiang Enlightenment. Enlightenment can be described succinctly and teachers check the link. In the "second lesson" basis, teachers will discuss student learning and the existence of a clear and concise explanations of common problems, so that the abstract complex English grammar

The first 2, teachers proficient stresses. It can be said for the teachers and the gatekeeper. In the second lesson preparation" based on self-learning, teachers and students will discuss the common problems in a clear and concise explanations, and thereby enable abstract complicated English grammar

Secondly, the teachers explaining instruction. Teacher explai