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Definition of laboriously adverb from the Oxford Advanced Learner's Dictionary

laboriously

adverb
 
/ləˈbɔːriəsli/
 
/ləˈbɔːriəsli/
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  1. in a way that takes a lot of time and effort
    • An agreement was laboriously worked out.
trait
noun
 
 
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B2
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