ratify/ˈrætɪfaɪ; `rætəˌfaɪ/ v(pt, pp -fied) [Tn]make (an agreement, a treaty, etc) officially valid, usu by signing it 使（协议、 条约等）正式生效（通常为经签署）; 正式批准.
牛津英汉双解词典