存在这种争论是正常的，中国外交学院（ChinaForeignAffairsUniversity）院长助理朱立群表示，鉴于中欧关系扩展，这种关系正在变得更加复杂。
It 's normal to have these kinds of disputes , said Zhu Liqun , assistant principal at the China Foreign Affairs University . EU-China relations are growing more complex because the relationship is expanding .
朱立群