adj.双焦点透镜；双光眼镜
n.双焦的；双焦点的

原形：bifocal复数：bifocals

She picked up her bifocal glasses from the table, adjusting them to read the small print.
她从桌子上拿起双光眼镜，调整好来看清小字。
The optometrist prescribed a new pair of bifocals for my grandmother, which she found much more comfortable.
眼科医生为我奶奶配了一副新双光镜，她觉得舒服多了。
Grandpa's bifocal lenses allowed him to switch between reading the newspaper and conversing with us without removing his glasses.
爷爷的双光镜片让他在阅读报纸和与我们交谈时无需摘下眼镜。
Bifocals have become less noticeable in recent years, with many designers offering stylish options for those who need them.
近年来，渐进多焦点眼镜已经变得更加隐蔽，许多设计师提供了供需要的人选择的时尚款式。
She wore her bifocal sunglasses while walking her dog, ensuring both distance vision and protection from the sun.
她戴着双光太阳镜遛狗，既能保持远视又能防止阳光直射。
The bifocal contact lenses he used were custom-made to correct his astigmatism as well as provide multifocal vision.
他使用的双光隐形眼镜是定制的，可以矫正散光并提供多焦视力。
After years of wearing single vision glasses, she decided to try bifocals to reduce eye strain while reading and working on her computer.
在单光眼镜使用多年后，她决定尝试双光镜以减少阅读和使用电脑时的眼睛疲劳。
The elderly couple sat side by side, each with their own pair of bifocal eyeglasses, enjoying a movie together.
那对老夫妇并排坐着，各自戴着一副双光眼镜，一起看电影。
Bifocal technology has advanced significantly, making it easier for people with presbyopia to adapt to different distances without switching between multiple pairs of glasses.
双光技术有了显著进步，使患有老花眼的人能够更容易地适应不同的距离，而无需频繁更换眼镜。
The new employee struggled at first with the transition to bifocals, but soon became proficient in using them for both reading documents and attending meetings.
新员工起初在适应双光镜时有些困难，但很快就熟练掌握了如何在阅读文件和参加会议时使用它们。