Two main reasons can cause poor eyesight: too much time spent indoors studying and too little time spent outdoors playing.(导致视力下降的主要原因有两个:花在室内学习的时间太多,花在户外玩耍的时间太少。)
His bad eyesight exempted him from military service.(他因视力不好而免服兵役。)
Some insects have very good eyesight.(有的昆虫视力极佳。)
For example, sunglasses are not just for fashion but they can also serve as a great way to protect your eyesight from ultraviolet rays.(例如,太阳镜不仅仅是为了时尚,也是保护视力免受紫外线伤害的好方法。)
My eyesight is failing.(我眼力不济了。)
A consultant, after all, is not unlike an optician who prescribes a new pair of glasses—or framework—to improve your eyesight.(毕竟,一名顾问,并不能像配镜师一样给你配一副新的眼镜——或眼镜框——来改善你的视力。)
Eggs are very good for the eyesight.(鸡蛋对视力非常有益。)
People who have eyesight problems should go to a hospital and let a doctor decide what to do.(有视力问题的人应该去医院,让医生决定怎么做。)
Most people believe that reading in dim light causes poor eyesight, but that is untrue.(大多数人认为在昏暗的灯光下阅读会导致视力下降,但这并不正确。)