Now at version 5, Preview has undergone numerous improvements over time, but its Annotations toolbar, easy selection of columns, and image editing capabilities emphasize its advantage for users.
目前版本5的预览，随着时间的推移虽经历了无数次改进，但它的注释工具栏、专栏的简易选取以及图像编辑能力强调了作为其使用者的优点。
Sometimes you need to add textual annotations to an image.
有时您需要向图像添加文本注释。
Each also contains elements, which provide URL links to detailed book information, a thumbnail image, a preview (if available), and annotations such as reviews and ratings.
每个还包含一些元素，这些元素提供的URL链接可链接到详细的图书信息、缩略图、预览(如果有)以及评论和评分等注释。
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