difficult的例句大全

It has been a very difficult problem to solve Markowitz model with no short sale in finance.

对不允许卖空情况下的Markowitz模型的求解，在金融学里面，一直是个很棘手的问题。

Partial network billiard bar is the most difficult to master the technology, in general are under no signal through normal channels are forced to use a technology.

偏杆是网络台球最难掌握的技术，一般都是在通过正常途径下打不到球时迫不得以才使用的一种技术。

The modern children find it difficult to conceive of a time when there was no radio or tv.

今天的儿童很难设想没有收音机和电视机的时代是什么样子。

No order could be more difficult to obey in that house and that room.

在这座住宅和这间房屋里，没有比服从这命令更困难的事情，

Comparing with large city public libraries, the county public library is weak and small, it is difficult to develop for a great shortage of outlay and talented people.

县级市公共图书馆相对于大城市公共图书馆来说，可以称得上是“弱势群体”，它们由于经费不足、人才匮乏等原因，经常处于“巧妇难为无米之炊”的境地。

If just like me, you sometimes find it difficult to be direct about saying "No" ， you can still be assertiveand express you disagreement in a more subtle, yet equally powerful way.

如果你和我一样，有时你会发现很难直接说“不”，但是你依然可以自信地用更加微妙、同样有效的方式表达异议。

Time and hard work are necessary for a difficult or important task.

罗马不是一天建成的(伟业建成非一日之功).

Yes, let me try. Oh, it's difficult. Will you show me how to do it?

好吧, 让我试试吧! 哦, 真不容易. 能教我怎么用 吗 ?

For example, participants who miss a class find it difficult to catch up as lecture videos are not online permanently.

比如说，由于讲座的视频不会永久存放在网络上，学生如果错过了一堂课、那么接下来就很难跟上后续课程了。

Asking for clarification shows you are thoughtful and won't go on wild goose chases in the office if difficult projects aren't spelled out for you in advance.

要求面试官解释可以体现你很细心，从而说明你在没有提前得到一个棘手项目的详细解释之前，是不会在办公室里白忙活一番的。

The decision was a difficult one for me because I have so enjoyed my working relationship here.

这对我而言是一个艰难的决定，因为我的确非常享受在这工作。

She has a difficult working relationship with many of her staff.

她与许多员工的工作关系都不好。

Chironomus larva ( red worm) has become a new problem in the water supply plant because it is difficult to be effectively removed by conventional methods.

摇蚊幼虫（红虫）在城市供水系统中的出现，成为困扰水厂正常生产运行的又一水处理难题。

As a university man, it is not difficult to understand.

作为一个大学生，这是不难理解的。

The most difficult step in programming values will be deciding exactly what we believe in moral, and how to create a set of ethical rules.

在将价值观编程时，最难的一步将在于确定我们究竟认为什么才是道德的，以及如何创建一套道德规范。

When an exam is too difficult, it kills theasas the bad.

当试题是太困难的, 好生水货一同受害.

Now, you could confront them and do battle with them, but that will most certainly be difficult.

现在，你可以面对他们与他们对抗，但这是很困难的事情。

Other midwives, like Bola Babadele, the chief of nursing at Abuja's National Hospital, say basic development problems across Nigeria, like lack of running water in many villages, makes the job difficult and sometimes even dangerous.

其他的助产士，像博拉·巴巴德利这样在阿布贾德国立医院的首席护士表示在尼日利亚的基础发展问题，像是许多村庄缺乏自来水，使这项工作变得非常困难而且有时甚至十分危险。

He found it difficult to fit into the male sex role.

他发觉做一个合乎标准的男人很难。

Results: The main causes of uterine rupture were unproper use of oxytocin,scared uterine,mispresentation and difficult transvaginal operations.

结果:资料表明致分娩期子宫破裂的顺序为催产素使用不当,疤痕子宫,胎位不正及困难的阴道手术。