To strengthen sustainability, WSP-EAP then began to promote the demand-driven approach required by supporting the change of procedures and the training of Nam-Saat staff.
为了加强持久性，东亚与太平洋地区饮水和卫生方案开始支助程序改革及安全饮水和卫生员工的培训，以此推动所要求的以需求驱动的方法。