There is a handy keyboard shortcut to save you having to scroll up to the top of the screen.
有一个方便的键盘快捷键可用，不必滚动到屏幕的顶端。
A table is handy for a list of messages, since it allows the user to scroll up and down.
对于一列消息来说，表很方便，因为它允许用户用滚动栏上下翻页。
Use less to view a text file with the ability to scroll up and down through the document and search for text patterns.
less命令也是用来查看文件，但是它支持上下滚屏以及在文档中进行文本搜索。
When working with a text document, the window was best made thin and narrow to make it easy to scroll up and down the text.
当处理一个文本文档时，又细又长的窗口是最佳的，因为这样便于上下滚动文本。
A common beginner's question is how to use a scroll bar to scroll up and down large images or text blocks.
这是初学者共有的一个疑问，如何使用滚动条来上下滚动大幅的图片或者文本块。
A common beginner's question is how to use a scroll bar to scroll up and down large images or text blocks.
这是初学者共有的一个疑问，如何使用滚动条来上下滚动大幅的图片或者文本块。
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