a Dickensian slum的用法和样例：
- Prepare yourself for a Dickensian romp complete with snow, street urchins and gentlemen in waistcoats.
- The bar in the slum is a den of iniquity.
- There is a vein of melancholy in his character.
- There was a long lag in forwarding mail to us.
- A bowl of hot chicken soup is good for you.