Television has transformed the size and social composition of the audience at great sporting occasions.
电视改变了大型体育赛事观众的数量及其社会构成。
Extracting information about the large-scale composition of a planet from a sample weighing a millionth of a gram was a fascinating example of scientific endeavour.
从重量为百万分之一克的样品中提取有关行星宏观组成的信息是一个极为有趣的科学尝试实例。
他的作文有进步。
How they differ in composition?
他们在成分上有什么不同？
A composition! Is that a composition?
一篇作文！这是合成吗？
Scientists study the composition of the soil.
科学家研究土壤的构成。
Comets are similar in composition to the gas giants.
彗星在组成上与气态巨行星相似。
The teacher limited her to 800 words for her composition.
老师把她的作文限定在800字以内。
Spectroscopy can reveal the composition of those touch-up layers too.
光谱学也可以揭示这些修饰层的组成。
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。
The chemical composition of rainfall changes slightly as raid clouds move.
当雨云移动时，降雨的化学成分略有变化。
The chemical composition of rainfall changes slightly as rain clouds move.
降雨的化学成分随着雨云的移动而发生轻微变化。
Earth's continental crust has changed significantly in composition overtime.
随着时间的推移，地球大陆地壳的组成发生了巨大的变化。
Except for a few grammatical mistakes, this composition of yours is well written.
除了几处语法错误之外，你这篇作文写得不错。
Other dimensions along which the two groups differ markedly are density and composition.
在密度和组成方面，这两个群体有显著的不同。
There is usually a good deal of turnover in species composition, even in a mature community.
即使在一个成熟的群落中，物种组成通常也有很大的变化。
Moreover, the Moon's composition, though similar to that of Earth's mantle, is not a precise match.
此外，月球的成分虽然与地球的地幔相似，但并不完全吻合。
Much more than the crust, the mantle contains information about a planet's or moon's total composition.
地幔包含的远远不仅是地壳，还有关于行星或卫星的总体构成的信息。
A student writes what he thinks is an excellent composition, but the teacher writes no encouraging remarks.
学生写出他认为很棒的作文，但老师没有写出令人鼓舞的评语。
You'll be happier with a poor composition, if it's your own, than with a fine one written by somebody else.
自己亲手写的一篇差作文会比别人写的一篇好作文更能让你快乐。
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。
So the spread of agriculture could very well have a profound effect on the composition of Earth's atmosphere.
所以农业的扩张很可能对地球大气的组成产生深远的影响。
In such cases, the original composition of the bone or shell remains, but the fossil is made harder and more durable.
在这种情况下，骨骼或外壳的原始成分会保留下来，但化石会变得更坚硬、更耐用。
Experiments suggest that if fire did not occur in savannas in the Americas, species composition would change significantly.
实验表明，如果美洲稀树大草原没有发生火灾，物种组成将发生显著变化。
Ir is found in high concentrations in some meteorites, in which the solar system's original chemical composition is preserved.
人们发现，在一些保存着太阳系原始化学成分的陨石中，铱元素的含量很高。
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。
Theorizing a titanic collision eliminates postulating a too-rapidly spinning Earth and accounts for the Moon's peculiar composition.
将泰坦尼克的碰撞理论化，消除了地球旋转过快的假设，并解释了月球特殊的组成。
Furthermore, the gypsum was found to possess peculiarities of composition and structure that suggested it had formed on desert flats.
而且，科学家们发现这些石膏具有独特的成分和结构，这表明它们曾经形成于沙漠的低洼地带。
Shifts in forest species composition ramify through the ecosystem in many ways because tree species have different, often unique properties.
由于树种具有不同的、往往是独特的特性，森林物种组成的变化以多种方式影响着生态系统。
Samples recovered from the expedition revealed important differences in chemical composition and fossil distribution among the sediment layers.
探险队采集的样品揭示了沉积物层之间化学成分及化石分布上的重大差异。
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