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English definition of “the key to sth”

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the key to sth

B1 the best or only way to achieve something: Hard work is the key to success.
Translations of “the key to sth”
in Chinese (Traditional) 實現…的關鍵, 完成…的要訣…
in Chinese (Simplified) 实现…的关键, 完成…的要诀…
(Definition of the key to sth from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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