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联想电脑公司的传奇电子教室于6月8日推出了换代产品——传奇电子教室4.0,传奇教学反馈系统2.0也同期推出,为联想教育方案
Lenovo’s legendary electronic classroom on June 8 introduced a replacement product - legendary electronic classroom 4.0, legendary teaching feedback system 2.0 also launched over the same period, the Lenovo education program