Based on Appendix 4 of the DSU, this article focuses on the current expert review mechanism and put forward some thoughtful suggestions on how to improve this mechanism in the WTO dispute settlement system.

• 本文的重点是对评审团聘任专家这一机制进行研究 ,并对如何完善世贸组织专家 (组 )的工作程序提出了若干设想