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English definition of “cost an arm and a leg/a small fortune”

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cost an arm and a leg/a small fortune

( UK also cost a bomb/the earth/a packet)
to be extremely expensive: I'd love to buy a Rolls-Royce, but they cost an arm and a leg.
Translations of “cost an arm and a leg/a small fortune”
in Chinese (Traditional) 極其昂貴, 花一大筆錢…
in Chinese (Simplified) 极其昂贵, 花一大笔钱…
(Definition of cost an arm and a leg/a small fortune from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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