单词potability
网络: 饮用性；可饮性
By the end of 2009, it said, the river water was passing more then 70% of potability tests, compared with an 86% failure rate in 2002.
截止2009年底，水质从2002年的86%项检测达不到饮用水标准，到2009年，已经有超过70%的检测合格。