untreated

1. ADJ If an injury or illness is left untreated, it is not given medical treatment. 未经治疗的

If left untreated, the condition may become chronic. 如果得不到治疗，此病可能会转成慢性。

2. ADJ Untreated materials, water, or chemicals are harmful and have not been made safe. 未经处理的 (有害的材料、水或化学品)

...the dumping of nuclear waste and untreated sewage. …核废料和未经处理的污水的倾倒。

3. ADJ Untreated materials are in their natural or original state, often before being prepared for use in a particular process. 未经加工的

All the bedding is made of simple, untreated cotton. 所有的床上用品都是由未经加工的普通棉布制成的。