跬步 - 查词扩展 is a free Chrome add-on that provides instant translation and dictionary lookup for unfamiliar words encountered while browsing web pages. Developed by 木流, this add-on is designed to assist users in improving their English vocabulary.

With 跬步 - 查词扩展, users can easily translate and look up words by simply double-clicking or selecting the desired word on the web page. On OSX platforms, users can use the Option key along with the double-click or selection, while on Windows platforms, the Alt key is used.

It is important to note that after installing the add-on, users need to refresh the web page they wish to look up words on in order for the add-on to take effect.

The latest version, v0.7, includes adjustments to the hotkeys for word lookup and improvements to the error logging interface. Previous versions, such as v0.6, introduced features like the ability to translate previously searched words and the ability to correctly translate certain words that were previously not translated correctly.

Overall, 跬步 - 查词扩展 is a useful tool for English learners or anyone who frequently encounters unfamiliar words while browsing the web. It provides a convenient and efficient way to instantly translate and look up words without the need for external dictionaries or translation websites.