Trees in cities "live fast but die young" compared to forests in the countryside, warns a new study.
一项新的研究警告说，与乡村的森林相比，城市的树木“活得快，死得早”。
But a study published last month by Mike Fast, a researcher, found that they are influenced by how catchers "frame" pitches.
但是研究者Mike Fast上个月公布的一项研究发现，接球手如何“设计”投球的方式，裁判们会相应地受此影响。
American children are seeing fewer TV ads for candy and beverages, but more fast food commercials, a new study finds.
新的研究发现，美国儿童收看到的糖果和饮料的电视广告数量有所减少，但快餐广告数量却有所增加。
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