After the medical products came into the scope of patent protection by TRIPS agreement, international com - munity debated how to balance the interests between drug patents and public health.

TRIPS协议将医药产品纳入专利保护范围以后，引发了国际社会对药品专利和公共健康二者利益如何平衡的争执。

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"Because of these changes in the educational system, we have lost our ability to understand the traditional ways, " says the Com-munity Academy's Chen.

CNN: Confucius is seen as a beacon in a changing world