They will be a hard nut even for the brains of the most erudite people.
他们将是一个难题，即使是大脑最博学的人。
Without right methods, even a seeing erudite might feel his way as blind man does.
没有正确的方法，即使有视觉的博学之士也会像瞎子一样摸索。
Without right methods, even a seeing erudite might feel his way as blind man does.
没有正确的方法，即使有视觉的博学之士也会像瞎子一样摸索。
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