Some experts say that colleges feel constrained from reining in the more extreme protests through a combination of concerns about cultural sensitivity and a desire to expand their own ties with China.

• 一些专家说，出于对文化敏感性的关注，以及想要扩大他们自身与中国的联系的愿望，使大学生们在谈到更为偏激的主张时都按捺不住了。