柯林斯詞典arduous /?ɑ?dj??s/ 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(zhǎng)、灼熱、艱難的旅程。 返回 arduous劍橋詞典difficult , needing a lot of effort and energy 艱難的，艱巨的；費(fèi)力的 an arduous climb /task /journey 舉步維艱的攀登／艱巨的任務(wù)／艱難的旅程 返回 arduous