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1·The work was arduous.

这项工作很艰巨。《牛津词典》

2·We must have patience in doing arduous work.

我们做艰苦的工作要有耐性。《新英汉大辞典》

3·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。《新英汉大辞典》

4·In the past, whole cities grew from the arduous task of cutting and piling stone upon.

过去，整个城市都是由艰辛地切割和堆砌石头发展起来的。

5·Travel was arduous and costly throughout the period, possible only for a privileged class—the same that produced gentlemen scientists, authors, antique experts, and patrons of the arts.

这整个时期里的旅行是艰辛、昂贵的，可能只有享有特权的阶级才能旅行，同样也是这个阶级造就了有教养的科学家、作家、古董专家和艺术赞助人。

6·Most goods were transported along the paths that provide short-cuts up and down the hillsides, but the paths were a real safety risk and made the journey on foot even more arduous.

大多数货物都是沿着山路运输的，这条路提供了上下坡的捷径，但这些路确实存在安全隐患，让徒步旅行更加艰难。

7·The tasks are arduous.

任务繁重。《新英汉大辞典》

8·This is a hard job.; The task is arduous.

这个任务很吃重。《新英汉大辞典》

9·The task is arduous; besides, there's not much time.

任务艰巨，同时时间又很紧迫。《新英汉大辞典》

10·We still face arduous struggles.

我们面前还有艰苦斗争。

艰巨

1·The work was arduous.

这项工作很艰巨。《牛津词典》

2·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。《新英汉大辞典》

3·Although we have today without the face of lost territory, subject to war without smoke, but the task before us arduous same.

今天的我们虽然无需面对国土的沦丧，无需承受战火硝烟，但我们面前的任务同样艰巨。

4·Finding that special someone can be both an arduous and lengthy task.

找到那个特别的人是一项艰巨而漫长的任务。

5·If you're not a spectacular storyteller or wondrous wordsmith, then the task of writing or updating your biography can seem like an arduous task.

如果你并不擅长讲故事，也不是奇妙的语言大师，那么完成一部耀眼的介绍文案对你来讲将是一个艰巨的任务。

艰苦

1·We must have patience in doing arduous work.

我们做艰苦的工作要有耐性。《新英汉大辞典》

2·This work will be arduous, but we have to overcome the difficulty.

这将是十分艰苦的工作，但也是我们必须克服的困难。

3·The rations they had packed for the arduous dog-sled journey across Antarctica proved insufficient, so Amundsen and his men decided to shoot and eat some of their dogs.

在这次用狗拉雪橇穿越南极洲的艰苦之旅中，由于他们带的口粮不够，阿蒙德森和他的队员决定射杀几只狗作为食物吃掉。

4·Many of the new arrivals are still suffering from malnutrition and malnourishment after enduring often long and arduous journeys from famine-stricken Somalia.

从饥荒蔓延的索马里历经漫长的艰苦跋涉之后，有许多新生儿仍然忍受着营养失调及营养不良之苦。

5·On the whole, the measures have produced some effects, but she warned that the current situation is still grave and more arduous efforts have to be made before final victory can be claimed.

总的看，这些措施已取得一些成效，但目前形势还比较严峻，取得彻底胜利需作出更加艰苦的努力。

费力的

1·Yet this will be difficult because as much as they might agree on matters of substance, the diffuse nature of the opposition makes agreement on tactics and procedures slow and arduous.

但这将是困难的，因为尽管他们会在主要问题上达成一致，各党派间本质上的种种差别会使他们对具体方法和程序的意见统一过程缓慢而又费力。

2·Collecting water for household use in drought-prone desert state of Rajasthan southwest of New Delhi can be an arduous, time-consuming, and sometimes thankless task.

位于新德里西南的拉贾斯坦邦位旱灾频发，为该邦居民送水是一项费力、耗时而且有时是不讨好的工作。

3·Then he had to find a way to show the frog making the arduous climb up a tree to find a new home for her tadpoles.

为了拍摄青蛙费力的爬树为它的蝌蚪们寻找一个新家时，他又想出了一个新的解决方案。

4·Getting around sprawling Jakarta and suburbs is a time-consuming and often arduous feat.

雅加达及其周边郊区扩展得杂乱无章，出行是一件费时又费力的事。

5·It is arduous, it is difficult, but once you can do it, you will have become a different person, a different being in a different world.

它是费力的，它是困难的，但是你一旦做到，你会变成一个不同的人，一个不同的存有者，在一个不同的世界里。

辛勤的

1·He has redesigned the protein heads of his tadpoles, and decided early on that instead of producing the protein himself - an expensive and arduous process - he would pay a company to make it for him.

他重新设计了他的tadpoles的蛋白质的头，并在早些时候决定那，自己不生产这种蛋白质-一个昂贵和辛勤的过程-他会付钱给一家公司为他达到预定目标。

2·The farmers harvest by a year of arduous work;

通过一年的辛勤工作的农民丰收；

3·The 1 million farmers here ever were this blackland ground to win completely homebred grain with arduous sweat the reputation of the biggest county.

这里的百万农民曾用辛勤的汗水为这块黑土地赢得全国产粮第一大县的声名。

4·Thanks to the arduous efforts of the acrobatic artists, the Troupe has won great reputation worldwide.

经过数位杂技艺术家的辛勤奋斗，杂技团取得了蜚声中外的成就。

险峻的

1·Along the Qiyi river and it's branches, there are fluctuant hill, arduous gorge, clear river, and peculiar spring.

青衣江及其支流沿岸，有绵延起伏的山，险峻的峡谷，清丽的河流和奇特的泉水。

2·The search could be arduous but rewards handsome for those with the right partnerships. However danger lurks for the uninitiated.

这一探索征程充满险峻挑战，危机潜伏，对生手尤其如此，但如拥有合适的合作伙伴关系，收益将十分可观。

吃重

1·This is a hard job.; The task is arduous.

这个任务很吃重。《新英汉大辞典》

(1)make arduous effortsv. 努力奋斗