While progress has been good, it is now recognized that implementation of the most promising United Nations House projects has been completed and substantial up-front, one-time costs may be required for future premises.
57. 在取得良好进展的同时,现认识到执行最有希望的联合国之家项目的工作业已完成,因此可能需要为未来房地预付大笔一次费用。