strenuousadj USA: stre'nyuː·ʌ·s UK: strenjʊəs
strenuouslyadv USA: stre'nyuː·ʌ·sliː· UK: strenjʊəsliː
strenuouslyadv USA: stre'nyuː·ʌ·sliː· UK: strenjʊəsliː
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