I didn't know how to handle those problems until I found the NLTK(nature language tools kit). I used the NLTK to lemmatize those words to a normal form.

为了使他们能够还原成单词的原始形态，我使用了NLTK（nature language tools kit） 来做词形还原。

youdao

Unfortunately, third-party Apple tools are always just one step away from being knocked out of existence, thanks to Apple's ever-changing software developer kit license.

不幸的是，由于苹果总是更改软件开发工具包许可协议，第三方苹果工具总是遇到难题。

youdao

Google has also made available a new version of the Native Development Kit, a set of tools allowing developers to write performance critical portions of their applications in C or C++.

Google还发布了新版本的 Native Development Kit, 这套工具让开发者可以用C或者C++来编写程序中对性能要求很高的部分。

youdao

Announcements will likely be around revenue models, increasing distribution of the Android-based TV operating system, a browser that works better so consumer content discovery and viewing are clearer, and a software development kit with better tools.

FORBES: Google TV's Next Step

The software development kit, along with software tools for building applications, is slated to be released to alliance members in a few weeks.

FORBES: Google's Call

Mono for Android consists of the core Mono runtime, bindings for native Android APIs, a Visual Studio 2010 plugin to develop Android applications, and a software development kit that contains all the tools needed to build, debug and deploy applications.

ENGADGET: Novell's Mono tools let devs create .NET apps for Android devices