6. a matter of sth/doing sth 与…有关的情况或问题 （描述类经典句） (来源：专业英语学习网站 http://www.EnglishCN.com)
Considering the following statements, made by the same man eight years apart. "Eventually, being 'poor' won't be as much a matter of living in a poor country as it will be a matter of having poor skills."
Dealing with these problems is all a matter of experience.
7. This is the similar case with/when 这恰如；正如；也会 （比较类经典句）
This is the similar case when the main melody can evoke a strong echo for us to clap our hands in admiration despite our disability to understand the score of Mozart's musical pieces.
Besides, this is also the case with the citizen's expenditure such as education, information, traveling.
8. be exemplified by 这一点也证明了…；这点反映在以下事实：… （举例类经典句）
This American desire to keep the children's world separate from that of the adult is exemplified also by the practice of delaying transmission of the news to children when their parents have been killed in an accident.
The manual worker is usually quite at ease in any company. This is partly explained by the fact that people of all income groups go together to the same schools.
9. constitute… （不用于进行式）是；认为 （判断类经典句）
History has proved eloquently that the division of labor based on equality and mutual benefit between China and USA constitutes the most reasonable and practical international relationship.
My decision does not constitute a precedent.
The defeat constitutes a major set-back for our diplomacy.
10. witness…… 见证… （发生类经典句）
The rapid development in the past 20-plus years witnesses a relatively solid foundation in terms of material wealth and technology in the western region of China
I am optimistic and hopeful that the next round of talk will witness a permanent cease-fire in the Middle East.