5. Invites all countries, as appropriate, to join the Group of Eight commitment to the non-proliferation principles endorsed by the Group of Eight leaders at the Kananaskis Summit aimed at preventing terrorists, or those who harbour them, from acquiring or developing nuclear, chemical, radiological and biological weapons, missiles, and related materials, equipment and technology;
5． 酌情请所有国家与八国集团一起承诺遵守不扩散原则，这项原则是八国集团领导人在卡纳纳斯基斯首脑会议上核可的，旨在防止恐怖分子或者窝藏他们的人取得或发展核武器、化学武器、放射性武器和生物武器、导弹以及有关材料、设备和技术；