还有另一个声明性示例，请研究描述有效XML文档方言的文档类型声明。

For yet another declarative example, consider a document type declaration that describes a dialect of valid XML documents.

youdao

一项研究描述两种混合型麝香，佳乐麝香，吐纳麝香就能对雌性激素和雄性激素进行干扰。

The study describes two synthetic musks, galaxolide and tonalide, as interfering with estrogen and androgen.

youdao

研究描述了facebook的使用与嫉妒之间的恶性循环，最终产生对关系的破坏行为。

The article describes a vicious cycle in which Facebook usage and feelings of jealousy become intertwined and have a negative influence on behavior and relationships.

youdao

Research on subjective wellbeing-- the term that psychologists use to capture happiness essentially has been going on for very, very long time.

对幸福的研究-,心理学家用这个词来描述快乐,已经进行了很多年。

哈佛公开课 - 幸福课课程节选

Now, I wouldn't have described it that way in the 1950s when I was doing this.

不过我当初不会这么描述那个时代,我当初研究时是五十年代。

普林斯顿公开课 - 人性课程节选

I have to warn you this third and final movie is an example of why this research is not currently done, but it illustrates an important scientific point.

我必须警告你们第三,和最后的影片是一个例子,关于为什么这个研究现在没有做，但它描述了重要的科学观点。

耶鲁公开课 - 心理学导论课程节选