默里说杰克逊视力很差，卫生习惯也不好。
Murray reported that Jackson had poor eyesight and, perhaps, poor hygiene.
蝙蝠视力很差，它们通常用超声波定位来导航。
Some bats with poor eyesight depend on echolocation to navigate.
他的视力很差，不戴眼镜无法读书。
His eyesight isn't very good. I have to wear glasses for reading.
它的视力很差，靠声音寻找食物。
她视力很差，不得不整天戴着眼镜。
它们嗅觉很发达，但是视力很差。
Their sense of smell is well-developed, but their sight is poor.
很多孩子因为看太多电视，视力很差。
Many children have poor eyesight because of watching too much TV.
他的视力很差，因为他做了太多的工作。
那位老人的视力很差。
如果我们的视力很差，也很难都看得清楚了。
If we have poor eyesight, it will be difficult to see everything clearly.
然而，他视力很差因为他晚上玩太多的电脑。
However, he has poor eyesight because of too much computer work at night.
他的视力很差。
他的视力很差。
我的视力很差。
因为水生动物的视力很差，科学家猜想它们更依赖听力。
Researchers thought some freshwater species might rely on sound because of poor visibility.
老妇人的视力很差，所以丑小鸭在这里住了一些日子。但是母鸡和猫却在打丑小鸭的主意。
The old woman's sight was very bad. So the duckling lived there for a few days. But the hen and the cat were mean to the duckling.
她的视力和听力很差，看不清也听不清。
Her eyesight and hearing are so poor that she can't see or hear clearly.
她的视力和听力很差，看不清也听不清。
Her eyesight and hearing are so poor that she can't see or hear clearly.
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