Something that is arduous is difficult and tiring, and involves a lot of effort. 艰难的
adjective [原级] 艰辛的，困难的
The work was arduous. 这项工作很艰巨。
- arduous 出现在下面的课文中（提供视频、音频及笔记等可系统性学习）
- Lesson 35 Justice was done arduous 形容词: 艰苦的，艰难的
- Lesson 44 Speed and comfort
ard(高的) + uous(多…的) → 很高的， 难以攀登的 → 费力的， 艰巨的
- 网友用 “Arduous” 造句精选
- He never seeks credit for himself, but is always ready to take on arduous tasks. 他在荣誉面前从不伸手，但在艰巨任务面前却当仁不让。
- ...a long, hot and arduous trip. …一段漫长、灼热、艰难的旅程。
- We must have patience in doing arduous work. 我们做艰苦的工作要有耐性。