名词

1. 杂质;不纯物质
Impurities are substances that are present in small quantities in another substance and make it dirty or of an unacceptable quality.

2. 淫乱;不贞
Impurity is the state of being no longer pure, especially sexually pure.

1. the condition of being impure

Synonym: impureness

2. worthless or dangerous material that should be removed

e.g. there were impurities in the water

Synonym: dross