The composition and levels of air pollution vary from place to place.

空气污染的成分和程度在各个地方都不尽相同。

youdao

Scientists had information about the shape of the domes but not about their chemical composition and origins.

科学家们掌握了关于圆顶形状的信息，但不清楚它们的化学成分和起源相关的信息。

youdao

The emphasis of this new "community ecology" was on the composition and structure of communities consisting of different species.

这种新的“群落生态学”强调的是由不同物种组成的群落的组成和结构。

youdao

She studied music at Florida State University and later moved to New York City to study violin and composition.

VOA: special.2010.07.12

It's an extraordinarily dark way to characterize the composition and the process of the poem.

这样来界定创作诗歌的过程,是一种非常不好的方式。

耶鲁公开课 - 弥尔顿课程节选

Composed 1629" -- whether or not that's actually true, and there's some controversy about that -- but nonetheless, the subtitle announces to all who know John Milton that the poet was twenty-one years old at the moment of its composition and that he had therefore just reached his majority.

作于1629“-不管它是否属实，尽管对此也有一些争议，但它向所有知道他的人宣告,诗人创作这首诗时只有21岁,因此他已经超过了多数同龄人。

耶鲁公开课 - 弥尔顿课程节选

But the U.N. and Hun Sen disagree on the composition and structure of the tribunal.

CNN: Seeking Justice

Aside from budgeting, there is also the issue of the personnel composition and structure of AFRICOM.

CENTERFORSECURITYPOLICY: AFRICOM proceeds apace

Liberal Democrats in the coalition are also worried about the composition and accountability of those bodies.

ECONOMIST: Big changes to the government��s plan for the NHS