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English definition of “wax and wane”

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wax and wane

to grow stronger and then weaker again: His commitment to democracy and free markets has waxed and waned with his political fortunes.
Translations of “wax and wane”
in Chinese (Traditional) 興衰榮枯, 盛衰…
in Chinese (Simplified) 兴衰荣枯, 盛衰…
(Definition of wax and wane from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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