2 sentences

1. 这种情况断然不能允许。

   zhè zhǒng qíng​kuàng duàn​rán bù néng yǔn​xǔ.

   This situation absolutely cannot be permitted.

   Source: Dong Chinese Dictionary

2. 他断然拒绝了对方的要求。

   tā duàn​rán jù​jué le duì​fāng de yāo​qiú.

   He flatly refused the other party's request.

   Source: Dong Chinese Dictionary