难以做某事
difficult task───艰巨的任务
difficult time───困难时期
difficult period───困难时期
difficult season───困难的季节
difficult birth───难产
difficult issue───难题
difficult match───困难的比赛
difficult position───困境
difficult process───困难的过程
This is notdifficult to dofor both dumps and create operations.───这实现起来并不困难，包括转储和创建两个操作。
I want you guys to think about why it wasdifficult to doit another way, which is more pedestrian.───我希望你们能思考一下为什么用另一种更普遍的方法来做比较困难。
It may bedifficult to doat first. Don't let this discourage you.───开始时做起来也许比较困难。不要让这个泄你的气。
Understand that this may be tremendouslydifficult to doif one lives in the density of the city, even when intended.───你需要理解，如果你居住在城市的致密中，甚至连这个意图也有可能是极困难的。
A lot of students have such feeling " see a book seem to understand, do it is verydifficult to doa problem to feel " .───很多学生都有这样的感觉“看看书好像都懂，做做题觉得很难”。
It would not have beendifficult to dothis, with a few snares stretched at the openings of the burrows.───要想捉住它们并不困难，只要在洞口布置几个圈套就行了。
We have to stay positive, but that's easy to say anddifficult to do.───我们必须要保持积极态度，但是说起来容易做起来难。
Their want for expands the spirit of the market actively, also blaming and scold to have no market, the business wasdifficult to do.───他们缺少主动开拓市场的精神，也就责怪没有市场了，生意难做了。
Also, this would make it verydifficult to dothings like the message batching optimizations discussed above.───同样，它还会使一些事情难以处理，比如前面讨论过的消息批处理优化。
This was verydifficult to doand there was a tendency to place the y-intercept at the origin.
We expect to find it increasinglydifficult to doso at short notice because our budgets are under mounting pressure.
This is quitedifficult to dounless you are sure you want to give up that last feed.
It is even moredifficult to docross-national comparisons between other modes of individual political participation.
That isdifficult to doby examining tumors under a microscope.
Don't you find himdifficult to dowith?
It'sdifficult to dohousework with the children under my feet all the time.
It isdifficult to dowith her.
It may bedifficult to doat first. Don't let this discourage you.