[OC] After my girlfriend had kidney stones last year (with severe and painful crises), I've started tracking her water consumption daily by a simple form. [she can convert it into gifts, with the 4th bottles valuing exponentially more than the first]
from /r/dataisbeautiful
[OC]去年我女朋友得了腎結石（有嚴重的疼痛危機）後，我開始通過一個簡單的表格每天跟蹤她的飲水量。[她可以把它換成禮物，第4瓶的價值比第一瓶的價值要高得多] 。