absolute forbid gap的用法和样例：
- The influence of quantum interferences on the narrow spontaneous line decreases as the forbidden gap and the detuning of the upper levels from the edges of the gap increase.
- Smoking is absolutely forbidden to the inmate of the prison.
- Smoking is absolutely forbidden to the inmates of the prison.
- I can't forbid you/your seeing that man again.
- That hill's an absolute doddle (to climb).