adj. 艰辛的，困难的
make arduous effortsv. 努力奋斗
1.This task can be an arduous and sometimes contentious effort in organizations.
该任务很难在组织中实行，并且有时会引起争议。
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 task is arduous; besides, there's not much time.
任务艰巨，同时时间又很紧迫。
4.May: Studying in the university is not easy, but it's not as arduous as you think.
阿美：大学的学习不那么容易，但也不是像你想象的那么枯燥。
5.Our duty and mission are glorious but arduous.
我们肩负的责任与使命，光荣而艰巨。
6.The work was arduous.
这项工作很艰巨。