13. Stresses that external factors specific to the objectives and expected accomplishments should be identified in the proposed programme budget and that assessment of performance should reflect, and not be distorted by, the impact of unforeseen external factors;
13. 强调方案概算中应列明各项目标和预期成果所特有的外部因素，而业绩评估应当反映出意外的外部因素的影响，而不被此种因素扭曲；