短語詞組短語Water and Sanitation Program 水及環(huán)境衛(wèi)生計畫Water & Sanitation 飲用水及其衛(wèi)生Water source sanitation 水源衛(wèi)生water supply sanitation 水源衛(wèi)生water and sanitation officer 水和衛(wèi)生処water and sanitation service 供水和環(huán)衛(wèi)処Water and Sanitation Project 水及公衛(wèi)方案Water and Sanitation 供水和公共衛(wèi)生 返回 water sanitation