柯林斯词典arduous /ˈɑːdjʊəs/ 1. ADJ Something that is arduous is difficult and tiring, and involves a lot of effort. 艱難的 ...a long, hot and arduous trip. …一段漫長、灼熱、艱難的旅程。 返回 arduous剑桥词典difficult , needing a lot of effort and energy 艱難的，艱巨的；費力的 an arduous climb /task /journey 擧步維艱的攀登／艱巨的任務／艱難的旅程 返回 arduous