二是以不同形式呈现教学内容，营造丰富多彩的课堂气氛；

Two present a content of course by dissimilarity form, construction abundant colorful classroom atmosphere;

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二是以不同形式呈现教学内容，营造丰富多彩的课堂气氛；

Two present a content of course by dissimilarity form, construction abundant colorful classroom atmosphere;

youdao