If you think about it, poor vision wasn't their only problem.
仔细想想，视力差并不是他们唯一的问题。
What did people with poor vision do, especially those few people who were actually literate?
视力不好的人会怎么做，尤其是那些少数受过教育的人？
成绩差还是视力弱？
It seems I suffered from poor vision.
原因似乎是我有近视。
How do you cope with the problem of poor vision?
怎样解决视力不好这一难题呢？
Greatly improved the poor vision of the movement of sight.
大大改善了视力差的运动视线。
The creature is physically feeble, with poor vision and dull senses.
这种动物体质虚弱，视力差，感觉迟钝。
Images must be easy to recognize, even for users who have poor vision.
图像要容易辨别，甚至对那些视力差的用户。
Then too, you're constantly being bumped against by those of poor vision.
再说，你会时常被眼神儿不好的人撞到。
这位老人视力不好。
But this vision has translated into a bitter divide between rich and poor countries.
这种设想已经转化为贫富国家之间的痛苦鸿沟。
unsafe environments, particularly for those with poor balance and limited vision.
不安全环境，尤其对平衡能力差和视力不好的人而言。
The old man wears glasses because his vision is very poor.
那老人因为视力太差而戴眼镜。
The old man 's vision is poor.
那个老人的视力差。
The old man 's vision is poor.
那个老人的视力差。
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