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1. The sororial organization has been working on a project for several years.
这个姐妹团体已经在这个项目上工作了好几年。
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2. She joined the sororial society to meet new friends and make new connections.
她加入了这个姐妹团体，是为了结识新朋友和建立新的联系。
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3. The sororial group is dedicated to helping underprivileged children in need.
这个姐妹团体致力于帮助有需要的贫困儿童。