4. For the purpose of paragraphs 3 (d) and (e) of this article, the Conference of the Parties shall acquire the necessary knowledge of the measures taken by States Parties in implementing this Convention and the difficulties encountered by them in doing so through information provided by them and through such supplemental review mechanisms as may be established by the Conference of the Parties.
4. 为了本条第3款(d)项和(e)项的目的，缔约方会议应通过缔约国提供的资料和缔约方会议可能建立的补充审查机制，对缔约国为实施公约所采取的措施以及实施过程中所遇到的困难获得必要的了解。