这时候他已坐了下来，把画放在面前的桌子上，双手支撑着额头，多情地反复看着这张画。
By this time he had sat down: he had laid the picture on the table before him, and with his brow supported on both hands, hung fondly over it.
在许多情况下，工具只是简单地不允许创建无效的XML，而在对哪些元素和属性可以出现在文档中特定地方提供了直觉的帮助。
In most cases, the tools simply disallow the creation of invalid XML, while providing intuitive assistance about what elements and attributes can occur at a given place in a document.
在许多情况下，无法轻松地修改它们来适应业务报告需求的变化。
In many cases, they cannot be easily modified to incorporate changing business reporting requirements.
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