Definition: the quality of being pure Level: C1
山区空气的纯净度令人称奇。
The ___purity of the air in the mountains is remarkable.
他深深地为她性格的纯洁与纯朴所打动。
He was deeply moved by the ___purity and simplicity of her character.
科学家们正在检测水质，以确保其纯度符合严格标准。
Scientists are testing the water to ensure its ___purity meets strict standards.
