ratify
verb [ T ] formal uk/ˈræt.ɪ.faɪ/ us/ˈræt̬.ə.faɪ/
（尤指政府或组织）正式批准，使正式生效，正式签署
(especially of governments or organizations) to make an agreement official
Many countries have now ratified the UN convention on the rights of the child. 很多国家现在已经正式签署了联合国儿童权利公约。
The decision will have to be ratified (= approved) by the executive board. 这个决议必须要经过管理委员会的批准。