This is a Web page highlight tool. You can make a highlight mark while reading the online document. And it supports simple comments to help you recall your original thoughts.
If you are using it for the first time, please click on the icon to register a free account.
谷歌浏览器、其他Chromium内核的浏览器
为打击盗链困扰,本站已启用人机验证
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