查询词典 difficult task

To create a perfect Red Turquoise with brilliant red body wide and paralled striation of turquoise, red eyes and perfect finnage is still the most difficult task for any breeder in the world.

用绿松石的精采红色身体宽和paralled线状要创造一块完善的红色绿松石，红色眼睛和完善的finnage仍然是所有交配动物者的难题在世界上。

Soil erosion by wind, as a natural disaster haunts on dry lands, not only degrades soil productivity but also often results in dust blizzard weather. It may cause pollutions of air and water, damages of highway and railway, wear and tear of buildings and machinery and harmfulness in health of people and animals. Therefore, to combat wind erosion means improving the environment for people to live and work, means heightening the living standard of the local people, and means promoting productive forces. But China has a vast land where probably occur wind erosion disasters, the arid, semiarid and subhumid areas of the temperate zone all are potentially hit by wind erosion. To control wind erosion in China is a very arduous task. More difficult is to achieve recognizable effectiveness with lowest cost.

中文题名宁夏土壤风蚀研究副题名外文题名 Estimation of wind erosion in Ningxia 论文作者李玉宝导师王礼先孙保平教授学科专业水土保持与荒漠化防治研究领域\研究方向荒漠化防治学位级别博士学位授予单位北京林业大学学位授予日期2001 论文页码总数100页关键词风蚀土壤风蚀土壤侵蚀馆藏号BSLW /2003 /S157 /14 中国发生土壤风蚀的潜在区域包括温带干旱、亚干旱和亚湿润气候下的广大地区，如何有效地预防和治理土壤风蚀，如何以最小的代价达到满意的防治效果，这是很值得研究的问题。

I'll try to tackle this difficult task.

我会努力去解决这个困难的。

But this is clearly only good Tam difficult task.

但是，这显然是唯一的好谭艰巨的任务。

And that's a very difficult task .

这是一项极其困难的任务。

Yes, it's going to be a difficult task.

是的，这将是一项艰巨的任务。

We all understand that it is a difficult task.

我们都明白这是一个艰巨的任务。

It's too difficult a task.

这是一项太难的任务。

It has shown it is a very complicated and difficult task to set up a fault diagnosis system .

可见构建故障诊断系统是一个相当复杂也很困难的事情。

Learning English does not have to be a difficult and tortuous task if learners have effective strategies.

学习英文不会是一个困难和煎熬的任务，如果学习者以有效的策略的话。

I can do simple painting, carpentry and plumbing.

我能做简单的油漆、木工和修水管等工作。

The motivations, notations and outline of this work are also given in this chapter.

从这个意义上讲，这些时滞是无害的。然后用实例说明这三个定理的应用和互不包含性。