可及性不足(Poor accessibility) 3. 缺乏计算机技能专才 4.
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Poor accessibility to natural attractions 景点交通不便
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And some people, such as the visually impaired, cannot see CAPTCHA images at all, so this technique exhibits poor accessibility, and can even be illegal in some circumstances.
有些人,比如视觉障碍人士,根本就看不到captcha图像,所以这个技巧的适用性比较差,在某些情况下甚至是不合法的。
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