bring about joy的用法和样例：
- In Catholicism, it is the ceremonial fire that is used to receive the commoners; it can bring about joy and the tranquility in one's mind.
- Science have bring about many change in our lives.
- Al causes operated to bring about the war.
- Several causes operated to bring about the war.
- Indigestion may bring about this disease.
- Our ultimate aim is to bring about a communist society.