问题描述：
请问这句话更深的意思是什么?（请用英语回答）谢谢
U.S.colleges,on the other hand,are so responsive to cultural currents that they are often on the cuting edge of social change.
U.S.colleges,on the other hand,are so responsive to cultural currents that they are often on the cuting edge of social change.
问题解答：
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