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Highlight words or other text content on any webpage.When you open them again,the content you highlighted will show again with background color.Tips:1.If the page content changed on the server after you highlighted, highlighted area will not rendered correctly.So you can click "Save" on the toolbar to save the whole page everytime you finished reading.Next time,click "Show History Page".2.And you can click "List" on toolbar,this will list all the highlighted content in a . This helps for those who are learning a foreign language.