a slice of ham的用法和样例：
- I was so hungry, I ate a slice of ham.
- The ham actor was ham-fisted after he took a slice of ham.
- Another grumbled that 15 pesos would buy only a bun and a slice of ham and was no substitute for a hot meal.
- He has spread a slice of bread with Jam.
- To make a ham sandwich you put a slice of ham between two slices of bread.
- Give me a slice of bread please.