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English definition of “work on sth”

work on sth

verb uk phrasal verb with work   /wɜːk/ us    /wɝːk/
B2 to spend time repairing or improving something: His dancing technique is good, but he needs to work on his fitness.Correcting and mendingEditing and compiling
(Definition of work on sth from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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