- 约定俗成 yuēdìngsúchéng conventionalestablished by popular usage; recognized through long-term social practice or common agreement
- 商量约定 shāngliangyuēdìng to mutually agreeto discuss and reach an agreement
- 照约定 zhàoyuēdìng as agreedaccording to what was previously agreed; as arranged; as stipulated
- 约定资讯速率 yuēdìngzīxùnsùlǜ committed information ratethe guaranteed bandwidth or transmission speed for a virtual circuit in a frame relay network
- 除另有约定 chúlìngyǒuyuēdìng unless otherwise agreedunless otherwise agreed; unless there is a separate agreement