求翻译：“俩俩对话”是课堂教学中经常采用的一种学生间的合作学习活动，这种活动可增强学生的语言运用和交际能力。对话内容可以是学过的对话、改编的对话，也可以是学生自编的对话。对话长短不限，可以两句、四句……甚至几十句，让学生量力而行。通过”俩俩对话”，学生能人人动脑、动耳、动眼、动口，不仅巩固了所学的对话，更重要的是连那些胆小、内向的、基础差的学生也得到锻炼，从而调动了班级里各层次学生学习英语的积极性。一堂课下来，整个班级对这一对话的掌握都很好了。是什么意思？

"Dialogue" is a frequently used among students in classroom teaching of cooperative learning activities, such activities can enhance students ' language and communication skills. Dialogue dialog dialogue, adaptation can be learned, can also be a dialogue between students ' self. Length open dialog can be two, four-sentence sth Even dozens of sentences, so that students lose. Through "dialogue", students can all brain, ear, eye, his fists, learned not only consolidate the dialogue is even more important those timid and introverted, poor Foundation students also get exercise, thereby mobilizing the enthusiasm of the students learning English at all levels in the class. Class down, the entire master class on this dialog are very good.