1. Permission has not yet been granted for the airline to overfly Tanzania.

这条飞越坦桑尼亚的航线尚未获准。

2. The university brusquely denied that it had given them permission.

大学方面矢口否认曾给予他们许可。

3. Some house extensions need planning permission.

一些房屋的扩建需要得到规划许可。

4. But they were refused retrospective planning permission.

然而他们未能获得有追溯力的规划许可。

5. They cannot leave the country without permission.

未经允许他们不得离开该国。