fur up
片語動詞所屬單字fur
fur up — 片語動詞
1. to become covered on the inside with a hard layer of mineral deposits (limescale
1.片語動詞
釋義
（水壺、水管等）結水垢
to become covered on the inside with a hard layer of mineral deposits (limescale), especially in a kettle, pipe, or water heater.
例句
This kettle has furred up badly because we never descale it.
The hot water pipes in the old house had furred up over decades of use.