问题描述：
一道SAT语法题求助!
The image of Uncle Sam, in his red and white striped pants and blue coat, is used at certain times to elucidate a feeling of patriotism in Americans. No error
是一道划线改错题,划线部分是：of,in his,certain和elucidate.
答案说是elucidate错.请问为什么是elucidate?
The image of Uncle Sam, in his red and white striped pants and blue coat, is used at certain times to elucidate a feeling of patriotism in Americans. No error
是一道划线改错题,划线部分是：of,in his,certain和elucidate.
答案说是elucidate错.请问为什么是elucidate?
问题解答：
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