a pleasurable occasion的用法和样例：
- Gallagher feels a pleasurable fury forming in him.
- A Pleasurable Life. Enjoy what you already had.
- To have a pleasurable or satisfactory time.
- On an occasion of this kind it become more than a moral duty to speak one's mind; it become a pleasure.
- On an occasion of this kind it becomes more than a moral duty to speak one's mind; it becomes a pleasure.