a mater of common pracdtice的用法和样例：
- As a mater of fact, I am hungry.
- Healing is a matter of time, but it is sometime also a mater of opportunity.
- Nettle is a kind of common wild plant.
- In Germany, in contrast with France, friendship is much more articulately a mater of feeling.
- Wu Ganlin is the first one to be programmed by CCTV as a mater of Success and Thinking and also is the originator of life education course in China.