虽然养鸽子会花费更多的钱，但研究中心说这可以节省时间。

Although it will cost more money to raise pigeons, the research center says that it can save time.

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但这之间确实具有一些有趣的相关性，儿童在儿童保育中心受到的照养质量与他们的词汇得分之间，存在着些许但重要的关联。

But there are some interesting correlations. There is a small, but significant correlation between quality of care received in a child-care center and vocabulary scores.

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和朋友们一起筹划、组织一组人，去公园养植花木，清扫社区中心或到志愿者机构做义工。

Plan and organize a group outing with your friends to plant a garden, clean up a community center, or work for a volunteer organization.

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