a slice of lemon的用法和样例：
- Give me a cup of tea with a slice of lemon, please.
- I would like tea with a slice of lemon, please.
- Build over ice in a highball. Garnish with a slice of lemon.
- One of the world's most popular speciality tea, it is a delicious, aromatic tea with a light liquor and best served in black or with a slice of lemon.
- He has spread a slice of bread with Jam.