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Jamming was an expensive and arduous procedure, and its efficacy is still debated.
en.wikipedia.org As the city lacks a perennial water source, catering the water requirements of the population has remained an arduous task.
en.wikipedia.org Your task will be the harder and more arduous one, for it will extend over a longer time.
en.wikipedia.org Women now participate in some of the more arduous events, including ear pulls and high kicks.
en.wikipedia.org The slaves working the sugar plantation were caught in an unceasing rhythm of arduous labor year after year.
en.wikipedia.org