来自pure,纯的，-ty,名词后缀。

1. Human life weighed more with him than purity of policy.

人类生命对他而言比政策的纯洁性更重要。

2. They worried about the purity of tap water.

他们担心自来水是否纯净。

3. The American Female Reform Society promoted sexual purity.

“美国女性改革社团”倡导性贞洁。

4. The purity of the water is tested regularly.

水的纯度定期检测。

5. White has always been a symbol of purity in Western cultures.

在西方文化中，白色一向象征纯洁。