adj.未被损害的，未受污染的

The water from the mountain spring is uncontaminated and safe to drink.
来自山泉的水未受污染，可以安全饮用。
They collected uncontaminated soil samples for laboratory analysis.
他们收集了未受污染的土壤样本用于实验室分析。
The study was conducted on a group of uncontaminated subjects.
这项研究是在一组未受污染的受试者中进行的。
The pristine forest remains uncontaminated by human activities.
那片原始森林尚未受到人类活动的污染。
The company ensures that all its products are made from uncontaminated ingredients.
公司确保所有产品都使用未经污染的原料制成。
The research team found traces of contaminants in some uncontaminated-looking lakes.
研究团队在一些看似未受污染的湖泊中发现了污染物痕迹。
She prefers to use only uncontaminated, organic produce in her cooking.
她喜欢在烹饪时只使用未受污染的有机农产品。
The scientists were surprised to find an uncontaminated area amidst the industrial complex.
科学家们惊讶地发现，在工业区中竟然有一个未被污染的地方。
The government has strict regulations to protect uncontaminated land from development.
政府有严格的法规保护未受污染的土地免受开发。
The aim of the project is to restore the river to its original, uncontaminated state.
该项目的目标是将河流恢复到其原始的、未受污染的状态。