在生词簿每个单词后面，加上两个按钮，熟悉与不熟悉:
1.如果点熟悉，就将生词簿中该单词后面记录的添加次数减一，直至减为0，就将该单词从生词簿中移除。
2.如果点不熟悉，就将生词簿中该单词后面记录的添加次数加一。

- 朱文绮


Click the Familiar or Unfamiliar button (current word frequency>1), the current word position is displayed at the top of the page;

Click the Familiar or Unfamiliar button (current word frequency is 1), and the page will be displayed as the top of the entire page.

Demo video link: https://b23.tv/QuB77m

- 占健豪