a high-ranking post的用法和样例：
- He was elevated to a higher rank.
- He was the most inquisitive Chinese of a high rank ？I have met.
- Everybody must obey the law, be he a common citizen or a high ranking official.
- Did you have a high rank?
- The program has been very successful in achieving a high rank, much of that is due to its ability to search nonstop.