bifocals 核心詞議：
n. 可以近視遠視兩用的眼鏡
bifocals 基本解釋
n. 雙重焦點透鏡，雙光眼鏡( bifocal的名詞復數 )
速記方法知識擴展
詞根詞綴
前綴bi-，二。詞根foc，焦點，見focus.
中文詞源
bifocals 雙光眼睛
前綴bi-, 二。詞根foc, 焦點，見focus.
中文詞源：
bifocals 雙光眼睛
前綴bi-, 二。詞根foc, 焦點，見focus.
bifocals
精選例句
1、 Nowadays,these glasses are known as bifocals.
如今，這被稱為雙光眼鏡。
常見考點例句：
- She had plastic bifocals hanging on a chain over her heavy chest .
- 她沉重的胸前面掛著一架塑料的雙光眼鏡。
- Nowadays , this type of glasses is known as bifocals .
- 現如今，這種眼鏡被稱為雙光眼鏡。
- Nowadays , these glasses are known as bifocals .
- 如今，這些眼鏡被稱作雙光眼鏡。
- 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 .
- 一旦調節好trufocal鏡片，整個視野就對準焦點了，這與只在有限區域進行銳聚焦的雙光眼鏡和漸進鏡片有所不同。
- It is a condition that causes vision to progressively blur with age , causing eye fatigue , poor night vision and reliance on bifocals & reading glasses .
- 這是一個條件，導致視力隨著年齡的增長，逐步模糊，造成眼睛疲勞，夜間視力差，對雙光眼鏡和老花鏡的依賴。