a small, dark area on the skin, especially of people older than around fifty

He has receding white hair, a walrus mustache and liver spots on his hands. 他发线后退，头发变白，留着海象式的小胡子，手上长着黄褐斑。

Liver spots are harmless and don't need treatment. 黄褐斑是无害的，不需要治疗。