topic introduction
网络释义
练习内容丰富，形式灵活多样，包括话题介绍 （Topic Introduction）、情景对话（Situational Dialogues）、口语练习（Oral Practice）等。
基于52个网页-相关网页
topic introduction and ratification 话题的导入和确立
Linguistic Cues in Topic-introduction 话题标示
Introduction to topic and task 介绍题目和任务 ; 介绍主题和任务
双语例句原声例句权威例句
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The topic introduction has been copied from the task and is deducted from the word count.
文章的开篇是从题目中抄来的，所以不能算字数。
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Thee topic introduction has been copied from the task and is deducted from the word count.
文章的开篇是从题目中抄来的，所以不能算字数。
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I want to finish with that and then start on the topic for this week which is an introduction to cellular physiology.
我想先讲完这些后,再开始本周的话题,来介绍一下细胞生理学的内容
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What I want to do is to provide a state of the art introduction to the most important topic that there is: us.
我所要做的,就是向大家介绍在人文领域里,对最重要主题,也就是对我们人类的研究现状
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