1.
You've set them a difficult task.
你给了他们一项艰难的任务.
2.
The task is tedious and difficult, but we must hang on till it is done.
这是一项烦人而且艰难的任务，但我们一定要坚持干到底。
3.
He interacted closely with us so as to finish the difficult task.
他与我们紧密配合以完成这项艰难的任务。
4.
'It's a tremendous job, 'said Tom.
“这是一项艰巨的任务，”汤姆说。
5.
Project of Exploitation of the West is A Long--Term and Arduous Task;
西部大开发是一项长期而艰巨的任务
6.
He especially enjoys the translation of a number of allusions used in the poem and complimented the translators as having creditably accomplished a very difficult task.
他尤其欣赏诗中许多引喻的翻译，并赞扬译者非常胜任地完成一项艰难任务。
7.
a tough game, assignment, problem, journey
艰苦的比赛、 困难的任务、 难题、 艰辛的旅程.
8.
a hard task, book, language
艰巨的任务、 难读的书、 难学的语言
9.
It is an urgent and arduous task of the circle of our Mongolian medicine.
这是我们蒙医界迫切的、艰巨的一项任务。
10.
Choose one of the hardest jobs yourself to set an example.
自己承担一项最艰巨的任务以给他人树立榜样。
11.
You should gather yourself up to complete a difficult task.
你应该打起精神去完成一项艰巨的任务。
12.
The Development of Human Resources in Tourism;
旅游人力资源发展──21世纪的一项艰巨任务
13.
He has accepted the minor task of difficulty in those two tasks.
他接受了那两项任务中困难较小的一项任务。
14.
I am fully qualified for the difficult task.
我完全有能力胜任这项艰巨的任务。
15.
She was sent abroad on a difficult assignment.
她被派出国执行一项艰巨任务.
16.
Difficult, demanding or stimulating task
艰巨的、高难度的或有激励性的任务
17.
The task is one to stagger the imagination.
这个任务的艰巨是难于想象的。
18.
The combination of refractory and noble metals in a single layer makes etching a formidable task.
难熔金属和贵金属组合的这一层薄膜使刻蚀成为一个艰巨任务。