a morass of problems的用法和样例：
- The books are written off as a morass of stuff and nonsense.
- She's had a lot of problems to contend with.
- Along with thousands of other families in dying inner cities, the Wolfs have become mired in a morass of welfare, crime and self-destruction.
- Spurgeon was ready (though he had hoped for the best) to stand up and be counted (all alone) rather than being lost in a morass of unbelief.