A midnight snack的用法和样例：
- He usually woke up in the middle of the night to have a midnight snack.
- If I go to bed later than usual, I usually have a midnight snack which consists of just a bowl of congee and a salted duck egg.
- We all stripped off and went for a midnight swim.
- On some other trains they also serve midnight snack.
- Do you want to see a midnight movie with me?