The 划词翻译 (柯林斯词典)+扇贝生词本 Chrome extension allows users to look up words in Collins Dictionary and perform instant translation. The extension supports word translation through selection and uses data sourced from Youdao Dictionary. Additionally, it integrates with the 扇贝生词本 (Shanbay Vocabulary) for quick word recording and future study. The 划词翻译(柯林斯词典)+扇贝生词本 extension offers more accurate word meanings and contextual understanding compared to other dictionary extensions on the Chrome Store.