不许 (bù xǔ): ไม่อนุญาตให้

Talking loudly is not allowed in the library; please everyone keep quiet.

Mom told Xiaoming that he is not allowed to play with his phone while eating and must focus on his meal.

The museum rules state that visitors are not allowed to touch the exhibits, to avoid damaging the artifacts.

The company stipulates that handling personal matters during work hours is not allowed, and everyone must comply.