可可英语助手 is a Chrome add-on developed by Nick Wang. It is a free tool that enhances the English listening and vocabulary practice experience on the Kekenet website. With this add-on, users can automatically hear the pronunciation of words while doing the listening exercises. The add-on allows users to customize the pronunciation frequency and interval according to their preferences.

One of the key features of 可可英语助手 is that it eliminates the need for users to manually click on the word input box before typing. This saves time and makes the process more efficient. Additionally, the add-on automatically displays the meaning of a word if the user takes too long to input it, eliminating the need for extra clicks and interruptions.

Overall, 可可英语助手 is a helpful tool for English learners using the Kekenet website. It simplifies the listening and vocabulary practice process, making it more convenient and efficient.