untreated
adjective uk/ʌnˈtriː.tɪd/ us/ʌnˈtriː.t̬ɪd/
（物质）未经处理的
An untreated substance is not cleaned and has not had special substances added to protect it or make it safe to use.
untreated water/sewage/waste 未经处理的水／污水／废弃物
This wood is vulnerable to water damage because it's untreated. 这种没有处理过的木头遇水会受损。
未经治疗的
Untreated illnesses, injuries, people, or animals do not receive medical treatment.
untreated illness/disease/depression 未治疗的疾病／疾病／抑郁症
It is a form of anaemia which is nearly always fatal if left untreated. 这是一种贫血病，如果不进行治疗的话会有生命危险。