贻误
8.Some refused to see doctors when ill and subsequently died when it was too late for medical treatment. 
9.Only if in truth thou canst be charged with being rather slow and dull of comprehension, thou must exert thyself about this also, not neglecting it nor yet taking pleasure in thy dulness.
10.Moreover, even an elementary knowledge of this branch of mathematics is sufficient to enable the journalist to avoid misleading his readers, or the ordinary citizen to detect the attempts which are constantly made to deceive him.
