这是一个研究小组对学校干预措施实行前后仔细评估得出的结论。
This comes from carefully conducted 'before and after' evaluations of interventions in schools, monitored by a research team.
本周三，一个研究小组试图证明，数千年前他们所在地区的岩石山上曾有人居住过。
This Wednesday, a team tries to prove that people lived in the rocky hills of their area thousands of years ago.
例如，亚利桑那州立大学的一个研究小组最近称，只需3000美元就能把他们开发的小型立方体卫星送入轨道。
For instance, a research group here at Arizona State University recently claimed their developmental small CubeSats could cost as little as $3,000 to put in orbit.
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