betrothals
n．订婚，婚约：在婚礼前的一段时间，两个人互相承诺将来结婚的正式协议。
例句
Betrothals generally lasted for a year or two, although child betrothals would last until the children had grown to marriageable age.
订亲仪式一般会持续一年到两年，甚至有些娃娃亲的订亲仪式会持续到两个孩子长到适婚年龄。
