A good river flows forever的用法和样例：
- David won't make a good river until he learns not to get into a stew every time he makes the slightest mistake.
- A stunt man needs to have a good guardian angel.
- The boy got a good beating for breaking the window.
- A good book is the best of friends, the same today and forever.
- It takes gumption to quit a good paying job.
- He agreed that he was wrong with a good grace.