bifocal glass
常見(jiàn)例句
- He also made the first pair of bifocal glasses and invented a musician instrument called the glass harmonica and a stepladder chair.
他還制造了世界上第一副雙光眼鏡，發(fā)明了一種叫玻璃琴的樂(lè)器和活動(dòng)梯子。
blog.sina.com.cn - He also made the first pair of bifocal glassed and invented a musical instrument called the glass harmonica and the stepladder chair.
他還制作出了世界上第一幅雙光眼鏡，發(fā)明了玻璃碗琴和活梯。
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