Braille was certain that he could develop the system to help blind people read.
布莱叶确信他能够开发这种系统去帮助盲人阅读。
The Braille telephone system, she said, will be a great help to her and others.
她说，这种盲文电话系统对她和其他人会有极大帮助。
The Braille telephone system, she said, will be a great help to her and others.
她说，这种盲文电话系统对她和其他人会有极大帮助。
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