Seventeen-year-old Lucas Mwanzia is visually impaired. For the past two years, he has been attending computer classes at the Thika School for the Blind. Lucas Mwanzia is in eighth grade. He started school at a later age because of his poor eyesight. But using the new technology, he can search the Internet for biology class. He says the technology has opened doors that once were closed.______________________________17岁的Lucas Mwanzia视力受损,在过去的两年,他已经在Thika盲人学校学习了计算机课程. Lucas Mwanzia上八年级,他因为弱视,上学时年龄较大.但是,他可以利用新技术上网学习生物课.他称科技重新开启了曾经关闭的门.________________________