The evolution and divergences of other parts of speech are determined by the implicit argument like time and space and their relative attributives.

其他词性的衍化取决于隐含的时空等论元所具有的自然属性。

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As prepositions are widely used in English, we should pay more attention to the differences of different prepositions and the differences of other parts of speech.

另外，英语介词应用广泛而灵活，应特别注意：介词自身的差异或与其他词类的差异。

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Find students from different parts of the country, record them talking to each other in different combinations, report on how they accommodate their speech or not, that kind of thing.

找一些来自这个国家各个地方的学生，记录下他们说话的不同方式，写一个关于他们是如何根据不同的说话者调节自己口音的报告，诸如此类的事情。

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