adjective🔗Share困難な, 骨の折れるNeeding or using up much energy; testing powers of endurance."The movement towards a peaceful settlement has been a long and arduous political struggle."平和的解決への動きは、長く困難な政治的闘争でした。energyabilityachievementChat with AIVocabulary GamePractice Reading
adjective🔗Share燃えるような, 熱烈なBurning; ardent"The arduous task of preparing for the exam kept her awake late into the night. "試験の準備という燃えるような課題は、彼女を夜遅くまで起きていさせた。energyqualityChat with AIVocabulary GamePractice Reading
adjective🔗Share困難な, 険しいDifficult or exhausting to traverse."The trek through the mountains was arduous, taking several days of constant climbing. "山を越えるトレッキングは困難で、数日間の絶え間ない登山を要しました。abilityqualityChat with AIVocabulary GamePractice Reading
