个人词库 (Personal Vocabulary Library) is a powerful Chrome extension aimed at enhancing language learning. It provides users with features like real-time highlighting of unfamiliar words, audio pronunciation, and instant translations. Additionally, it offers grammatical dependency and analysis tools, helping users grasp the nuances of different languages better. The extension is enabled through customizable shortcuts, making it user-friendly and efficient. With the integration of Anki, it allows users to convert difficult vocabulary into flashcards for easier retention and review, promoting a more interactive language-learning experience.