承诺 (chéng nuò): สัญญาว่าจะ

Before getting married, he solemnly promised his fiancée that no matter what difficulties they encountered in the future, he would always stay by her side.

The company promised to refund all deposits within one month, but three months have passed and customers still have not received their refunds.

He made a promise to his child to take him to the zoo on the weekend, so even though he was busy with work, he tried hard to make time.

Before signing the contract, both parties must promise to comply with the confidentiality clause; otherwise, they will bear legal responsibility.