difficult task

He is attempting a difficult task .

他正在试图完成一项困难的任务。

Tracing the attacks further back , to an elite Chinese university and a vocational school , is a breakthrough in a difficult task .

对攻击的进一步追踪，发现和一家中国菁英大学和一家职业技术学校有关，是一项困难的任务的突破性进展。

She 's set a difficult task for herself .

她给自己安排了一项艰巨任务。

The identification of the crash victims was a long and difficult task .

鉴别坠机意外伤亡者的工作费时而且困难重重。

The computer has simplified the difficult task of teaching reading to the deaf .

电脑简化了教聋人阅读这一艰巨的工作。

With the loyalty of key military units in question , that could prove an extraordinarily difficult task .

由于无法确定关键军事部队忠诚与否，这项任务也许会变得异常困难。

The boss forced this difficult task upon him .

老板强迫他干此苦差事。

He is facing a difficult task .

他正面临一项艰巨的任务。

It is a difficult task , but I 'm sure he 'll rise to the challenge .

这是个艰巨的任务，不过我相信他能应付自如。

Class two beat the others to the most difficult task .

二班捷足先登，把最艰巨的任务抢走了。

But however you do it , you will find it a difficult task .

但是这件事无论你怎样去做，你都会发现很棘手。

Who are you putting the difficult task on ?

你们准备派谁去完成这项艰巨的任务？

To water the trees was a difficult task for one man .

靠单人给这些树浇水很难。

Raising chickens seems a difficult task for teenagers .

养鸡对青少年来说似乎是一项艰巨的任务。

For them , learning a language is a difficult task .

对于他们来说，学习语言是一项艰巨的任务。

This difficult task is the acid test for all of us .

这项困难的工作对于我们大家都是一种严格考验。

For them , learning a language is a very difficult task .

对成年人来说，学习另一种语言是很难的事。

This is one very difficult task in the studying nonlinear dynamics design .

这是非线性转子动力学研究中的一项非常艰巨的任务。

What a difficult task it is ( for him )!

是多么使他为难的一个工作？

However , many freshmen find this a difficult task .

然而，许多新人发现这并不是一件容易的事。

It is a difficult task , but we bring it off .

那工作很困难，但是我们圆满完成了。

Therefore , edge detection of image is a very difficult task on image analysis .

图像边缘检测一直是图像处理中的热点和难点，迄今已有许多边缘检测方法。

However , English vocabulary learning is a difficult task for Chinese learners .

然而英语词汇学习一直是中国学习者的一道难关。

Therefore , the prevention and treatment of cancer is a very difficult task .

因此，癌症的预防与治疗任务十分艰巨。

Design and development of enterprise business information management system is a difficult task of integrated systems engineering .

设计开发企业商务管理系统是一项涉及面广，技术难度大的综合性系统工程。

She finds looking after her old father a difficult task .

她觉得照料年迈的父亲是件艰苦的工作。

You 've set them a difficult task .

你给了他们一项艰难的任务。

She 's set herself a difficult task .

她给自己安排了一项艰巨任务。

Point target recognition is the most difficult task in anti-missile system .

点目标识别是反导系统中最困难的问题之一。

The difficult task is to set the model of nurturing talents .

难点是确定人才培养模式；