bifocals 核心词议：
n. 可以近视远视两用的眼镜
bifocals 基本解释
n. 双重焦点透镜，双光眼镜( bifocal的名词复数 )
速记方法知识扩展
词根词缀
前缀bi-，二。词根foc，焦点，见focus.
中文词源
bifocals 双光眼睛
前缀bi-, 二。词根foc, 焦点，见focus.
中文词源：
bifocals 双光眼睛
前缀bi-, 二。词根foc, 焦点，见focus.
bifocals
精选例句
1、 Nowadays,these glasses are known as bifocals.
如今，这被称为双光眼镜。
常见考点例句：
- She had plastic bifocals hanging on a chain over her heavy chest .
- 她沉重的胸前面挂着一架塑料的双光眼镜。
- Nowadays , this type of glasses is known as bifocals .
- 现如今，这种眼镜被称为双光眼镜。
- Nowadays , these glasses are known as bifocals .
- 如今，这些眼镜被称作双光眼镜。
- Once the trufocal lenses are adjusted , the entire field of vision is in focus , unlike bifocals and progressive lenses , which keep only a limited area in sharp focus .
- 一旦调节好trufocal镜片，整个视野就对准焦点了，这与只在有限区域进行锐聚焦的双光眼镜和渐进镜片有所不同。
- It is a condition that causes vision to progressively blur with age , causing eye fatigue , poor night vision and reliance on bifocals & reading glasses .
- 这是一个条件，导致视力随着年龄的增长，逐步模糊，造成眼睛疲劳，夜间视力差，对双光眼镜和老花镜的依赖。