Englishfor English speakers
arc
Noun
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An arc is part of a circle.
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Electricity jumping from one place to another. This is very bright and looks like lightning.
arc
Verb
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If something arcs, it makes an electrical curve.
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If something arcs, it goes along a curved path.
maintenance
Noun
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Maintenance is the process of regularly fixing things and keeping something in good shape.
After 8,000 km, you should take the car in for maintenance.
Wood houses can be a problem because they require regular maintenance.