According to some open sources modified these card's template, make a simple bionic-reading and random-cloze, it just uses fixed scale word's length to bold the characters， next version will try to develop by syllables to bold and cloze the word and maybe seems more natural。about bionic-reading can refer to:
https://bionic-reading.com/
最近看到了几篇仿生阅读的文章，
https://bionic-reading.com/ 在网上找了些开源，在其基础上进行了修改，即简单的根据单词长度按百分比进行了开始部分字符的粗体显示，并加上了随机隐藏单字的方法来进行阅读和背诵，后续正改进为可按照音节进行粗体显示和隐藏可能会更自然一下。