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文字预览1. As the pace of life continues to increase, more and more people eat fast food frequently.
2. On the one hand, most fast food contains little nutrition but lots of preservatives (防腐剂) which do great harm to our health. 3. Therefore, the people who have such kind of food for a long time are more li... 图片详情
Tags：外研版,2019,必修,第二,UNIT1-6
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