彼女は長年の間に包丁をすり減らした。

tbd

She ground down a kitchen knife in the course of many years.

私の子供達はすぐに靴をすり減らす。

tbd

My children wear out their shoes quickly.

すり減らすのはシーツではなく靴にしろ。

tbd

Better wear out shoes than sheets.