作者：黄业虎 作者单位：无 简介：无
相关课件：
Unit 2 English around the around (the whole unit)
简介： ppt制作 现在许多蔬菜种在温室里， 在那儿他们可以免受风雨袭击。
Today many vegetables planted in greenhouses, where they are protected from the rain and the wind .
8.在过去的十年中， 科学技术取得了重大发现。
In the past/last few years, important discoveries have made in science and technology.
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