We had to write a composition on the subject "My Pet."
我们得就“我的宠物”这个主题写一篇作文。
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？
Don't think about your composition now.
现在不要想你的作文。
Susie would hand in her composition happily.
苏茜会高高兴兴地把作文交上来。
Scientists study the composition of the soil.
科学家研究土壤的构成。
She forgot all about the terrible composition!
她把那篇糟糕的作文全忘了！
What did the boy probably write in his composition?
这个男孩在作文中可能写了什么？
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。
At the moment there is no course I enjoy more than composition.
现在，没有一门课比作曲更让我喜欢了。
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 first composition that was read was one entitled Is this, then, Life?
朗读的第一篇作文的题目是《难道这就是生活吗？》
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。
This composition was considered to be the very finest effort of the evening.
这篇作文被认为是当晚最出色的作品。
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。
Apart from [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。
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。
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。
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