他们中的很多人生活过得体面，通常在中等家庭收入水平之上（4万9千7百7十七美元），2000年以前的前20年，大多数人都过得还是很好的。
Those in them make a decent living, usually above the median family income ($49, 777), and they mostly did fine in the two decades before 2000.
语篇构成水平和语篇中话语得体影响语言交际的质量。
Both the level of discourse construction and the proper use of language in discourse influence the quality of communication.
最后就个人在教学实践中的一些心得体会，讨论了如何提高外语教学的水平，促进教学的良性循环。
At last, according to what one has gained from teaching practice, the author discussed how to improve the level of foreign teaching and bring about virtuous circle of teaching.
最后就个人在教学实践中的一些心得体会，讨论了如何提高外语教学的水平，促进教学的良性循环。
At last, according to what one has gained from teaching practice, the author discussed how to improve the level of foreign teaching and bring about virtuous circle of teaching.
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