全部

1·Julia adjusted her invisible bifocal glasses and entered the classroom.

茱莉亚调整了一下自己的双光隐形眼镜。

2·People who wear bifocal glasses know all about how the distorted view they get when looking downwards at the ground.

戴双焦眼镜的人知道往地下看的时候怎么是看到歪曲的景象。

3·He also made the first pair of bifocal glasses and invented a musician instrument called the glass harmonica and a stepladder chair.

他还制造了世界上第一副双光眼镜，发明了一种叫玻璃琴的乐器和活动梯子。

4·Part of a new line of electronic eye glasses called emPower, they allow bifocal wearers to switch between different prescription settings for reading and more distant viewing.

电子眼镜一个新的部分是enPower，允许双焦眼镜对看书和更远景观的不同指令调节点进行转换。