研究人员表示，为了确保城市健康发展，种植和保护树木是必要的，但我们还需要做更多的工作来更好地了解城市树木，因为它们可能与乡村森林不同。
Researchers say planting and protecting will be needed to make sure cities can develop healthily, but more needs to be done to have a better understanding of city trees which may be different from countryside forests.
这样，在乡村和城市地区的社区健康工作者可以帮忙联系偏远地区不能直接到诊所就医的病人。
Community health workers in rural and urban areas can help connect patients in remote areas who don't have direct access to medical clinics.
“它不是像这样隐在树荫里。”我回答，“而且也没这么大，但是你四面可以看得到美丽的乡村景色；那空气对你的健康也比较适宜——比较新鲜干燥。”
It is not so buried in trees, 'I replied,' and it is not quite so large, but you can see the country beautifully all round; and the air is healthier for you — fresher and dryer.
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