Free software means that everyone is free not only to obtain and use the tool kit but also to modify and redistribute it, provided that certain conditions are met.

自由软件意味着每个人不仅可以自由地获得和使用这个工具包，还可以在满足某些条件的情况下修改并重新发布它。

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The plus sign was added to the name later, when the tool kit gained object-oriented features and extensibility.

当这个工具包获得了面向对象特性和可扩展性之后，才在名称后面加上了一个加号。

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The tool kit is also extensible, meaning that you can add your own blocks to it and use them the same way you would use built-in blocks.

工具包也是可扩展的，这意味着可以向其中添加自己的块，并用使用内置块一样的方式使用它们。

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Yet there is still another instrument in the Bank of Japan's tool-kit: it can increase the quantity of money by buying government bonds ie, by printing money.

ECONOMIST: The new danger

The new VW Golf and Audi A3, for example, are the first of about 40 new small and midsize models that will be developed using the small-car tool kit.

FORBES: How Volkswagen Will Rule The World

Both exploits take advantage of the Blackhole exploit kit, an off-the-shelf hacking tool that was updated last month to prey on the Java vulnerability, such that users who run the Java plug-in can have their PC entirely compromised via their browser when they visit an infected site.

FORBES: Beware Fake Microsoft And Amazon Emails Exploiting Java Security Vulnerability