It may be difficult to do at 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。

It's difficult to do it right.

很难把它做好。

When a person is born without legs, there are plenty of things that are difficult to do.

当一个人生来就没有腿，有很多事情做起来都很困难。

Everything else is really difficult to do experimentally.

其他的很难通过实验做到。

This is not difficult to do for 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 was difficult to do it 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's also not very difficult to do.

该功能的实现并不难。

That's very difficult to do that, because of gravity.

因为有重力存在。

This step involves some magic, but is not difficult to do.

这个步骤需要一点技巧，但也不是很难。

It would be difficult to do this trick with conventional detectors.

但在常规的探测器大行其道的现在，这很难。

This is not difficult to do, for both dump and create operations.

这实现起来并不困难，包括转储和创建两个操作。

It is slower and more difficult to do in a multithreaded environment.

在多线程环境中更慢也更难以使用。

Such building is difficult to do, however, when programming GUIs.

不过，在进行GUI编程时，这样的构建不太容易。

What's difficult to do in books for children is to create funny incidents.

为孩子写书的难点在于创设有趣的环节。

Needless to say, it's difficult to do manual labor on an empty stomach.

不用说，空着肚子劳动是很难的。

It's not too difficult to do this, as you might guess from the Listing 9 output.

这项工作并不太困难，因为可以从清单9的输出中进行猜测。

After school he came back home, but he found it difficult to do his homework.

放学后他回到家，但是他发现作业太难了。

Advertising, the lifeblood of many broadcasters, is difficult to do globally.

许多公共广播机构的命脉所在——广告，在全球范围内很难操作。

"Not only does this kill some cells, it's extremely difficult to do," Whitesides says.

这不仅会杀死部分细胞，还很难操作。

That's not too difficult to do, but the implementation code becomes fairly complex.

这并不太难做到，但是实现代码将变得相当复杂。

Even when I have a clear signal to reverse my position, I find it extremely difficult to do.

即使我有明确的反转信号，我发现超级难执行。

That makes tracking down bugs in the majority of the application code even more difficult to do.

这使得在应用程序的大部分代码中找出错误更加困难。

Distinguishing statements of fact, opinion, and inference may at first seem difficult to do.

有区别的事实意见还有推断在开始的时候也许会比较难以处理。

If they really wanted to investigate, it wouldn't be difficult to do with current technology.

如果他们真的想调查，以现在的技术手段不难调查处真相。

Easily said, very difficult to do; you must labor to understand the "other" person's perspective.

说起来容易，做起来却很难很难。你得努力去理解别人的观点。

The key is to forgive those who have hurt and sinned against us, even if it is very difficult to do.

问题的关键是要宽容那些曾经伤害过和反对过我们的人，即使是很难做到。

Comparing and reasoning between these two types of estimates is very difficult to do—perhaps impossible.

比较解释这两种估算是非常困难的——也许是不可能的。