Silver Jewelry

I often wear a silver chain.
Over time, silver jewelry may gradually turn black.
If you soak in a hot spring containing sulfur, the silver jewelry will turn black immediately.
That's because sulfur will combine with silver to form black silver sulfide.
Scrub it with toothpaste and it will return to its original silvery white.

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我常佩戴银链。

随着时间的推移，银饰品可能会逐渐变黑。

如果你泡含硫磺的温泉，银饰品会立刻变黑。

因为硫会与银结合，形成黑色的硫化银。

用牙膏进行刷洗，它就能恢复原有的银白色。