I always talk about my experience with middle school students in America.
我经常对美国中学生讲我的经历。
During the middle of the 20th century, about half of visually impaired school-age students in America read Braille.
在20世纪中叶，美国约有一半的视障学龄学生读盲文。
During the middle of the 20th century, about half of visually impaired school-age students in America read Braille.
在20世纪中叶，美国约有一半的视障学龄学生读盲文。
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