This extension has been developed for online teachers, designers, engineers, working people on the network
You can draw(annotate) over your current page when you use this extension.
Using this will free you from the stress of explaining and make you happy.
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
微信扫码关注左侧公众号,发送“插件”二字获得验证码,验证码5分钟全站有效