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English definition of “strenuous”

strenuous

adjective    /ˈstren·ju·əs/
needing or using a lot of effort or energy : I think football is much more strenuous than baseball . strenuously    /ˈstren·ju·əs·li/ adverb He strenuously denies that he is guilty .
(Definition of strenuous adjective from the Cambridge Academic Content Dictionary © Cambridge University Press)
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