1. 纯银 (chún yín) - This is the most literal translation, meaning "pure silver". It's often used in general contexts, like referring to the material itself.
2. 925银 (jiǔ èr wǔ yín) - This is a more specific translation, literally meaning "925 silver". It refers to the specific alloy of silver that is used in sterling silver (92.5% silver, 7.5% other metals). This is commonly used when talking about jewelry or silverware.
Both translations are acceptable, but the second one is more precise and avoids ambiguity.