Teachers say the digital age has had a good influence -- and a not-so-good influence -- on this generation of American teenagers. More than 2,000 middle and high school teachers took an online survey. Researchers also spoke with teachers in focus groups.教师们说,数字化时代对这一代美国青少年的影响有好有坏.2000多名初中和高中教师参与了网上调查.研究人员还同重点小组的教师进行了交流.
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