adjective🔗Share艰巨，费力的。 Needing or using up much energy; testing powers of endurance."The movement towards a peaceful settlement has been a long and arduous political struggle."争取和平解决的努力是一场漫长而艰巨的政治斗争。energyabilityachievementChat with AIVocabulary GamePractice Reading
adjective🔗Share炽热的，热烈的。 Burning; ardent"The arduous task of preparing for the exam kept her awake late into the night. "准备考试这项炽热的任务让她熬夜到深夜。energyqualityChat with AIVocabulary GamePractice Reading
adjective🔗Share艰难，费力，崎岖。 Difficult or exhausting to traverse."The trek through the mountains was arduous, taking several days of constant climbing. "穿越群山的徒步旅行非常艰辛，需要连续攀登好几天。abilityqualityChat with AIVocabulary GamePractice Reading
