Finally, it's useful to have a sense of the absolute limits of what computers can do; it turns out that there are just some things that are not possible for a computer to do.

最后，要知道计算机并非是万能的；你关掉电源它就什么都做不了。

youdao

Still, Pippy gives you enough to play with now, and enables you to do some useful things without too much effort.

尽管如此，现在Pippy已经提供了足够使用的功能，可以使您不费太多力气就能完成有用的事。

youdao

To do useful things with Twitter4J and indeed, Twitter, you'll need to create an account on Twitter. And you'll want to follow some people so you can make a geo-view of your friends.

为了利用Twitter 4 J(更确切地说是Twitter)做有用的事情，需要在Twitter上创建一个帐户，并且要追随一些人，以便制作好友的地理视图。

youdao

In sum, there are some useful things that government can do to boost innovation.

FORBES: Innovation Works Best When Government Does Least