对Web标准的支持，包括可扩展标记语言(XML)、可扩展超文本标记语言(XHTML)和层叠样式表(CSS)，虽然有所改进但是还不完善。

Support for Web standards — including Extensible Markup Language (XML), Extensible Hypertext Markup Language (XHTML), and Cascading Style Sheets (CSS) — was improved but not yet perfect.

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虽然面向对象语言与技术已被广泛使用，但是面向对象语言理论还不完善。

Although object-oriented languages and technologies have been used widely, the theories of object-oriented languages are not perfect.

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