眼功能包括形觉色觉和光觉。视力是比较精确地表示形觉的功能，可分为中心视力和周边视力，中心视力是通过黄斑中心获得的，周边视力指黄斑以外的视网膜功能。故视力是视功能的具体表现之一。视力发生障碍，虽然很轻微，也说明视力功能受到了影响。
双语例句原声例句
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在某种情况下，对于那些没有视力障碍的人也有优势。
In some cases, a sound alert has advantages even for those without a visual impairment.
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如果用户有视力障碍，或者不方便或者不可能查看屏幕时，这将非常有用。
It is particularly useful where the user has a visual impairment or is using a system or process where consulting a screen is either inconvenient or impossible.
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然而，对于残疾人来说，尤其是有视力障碍的人，这种优势造成了巨大困难。
However, to individuals with disabilities, especially visual disabilities, these advances pose a significant challenge.
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We already talked a little bit about his name and the occlusion of sight.
关于他的名字和视力上的障碍,我们已经谈过了一点。
应用推荐
$firstVoiceSent
- 来自原声例句