Ｓａｃｈｅ和Ｄｉｎｇ两词在用法上的主要差别西安交大李元坚，杨婕１．指物品，东西：５ａｃｈｅ是指身边的具体物品，个人的所有物，尤其是衣物或具有特种用途的小工具。例如......

Accessibility and availability of fresh clean water is a key to sustainable development and essential element in health,......