wear away

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It can only be cleaned by specialist conservators every few years because frequent cleaning would wear away the marble, and it would then need to be recast in bronze.
Both plates can be welded or bolted to existing diamond plate structures and will not wear away over time.
Their joints become stiff and painful because the cartilage that cushions the ends of their bones begins to fray and wear away (see "Joint Venture").
2 WATCH YOUR DRINKS Fruit juices, wine and fizzy drinks are high in acid which can wear away the enamel on your teeth, so try to avoid swishing them round your mouth.
This maltracking of the kneecap is very common, and causes the cartilage around the bone to prematurely wear away.
4 Rain, rivers, or even people digging for fossils wear away at the rock layers to reveal the buried fossils.
Many argue if a hammer has more material, it will wear away more slowly and need to be replaced less frequently, he says.
Colony's gamelong pressure seemed to wear away at the legs of Calabasas players.
Plastic is non- biodegradable, which means it doesn't wear away.