■ Yes, I do.

在教堂举行婚礼时，神父或牧师照例要分别问新郎和新娘：

• Do you take ×× as your lawful wife/husband, to have and to hold, from this day forward, for better or for worse, for richer or for poorer, in sickness and in health, to love and cherish until death do you part?你是否娶／嫁给某某为你的合法妻子／丈夫，从今天起，与她／他厮守终生，无论是祸是福，或穷或富，或病或健，都相亲相爱，直到死亡将你们分开？

此时新郎新娘的标准回答是：Yes, I do. 因此，Yes, I do. 成了举行婚礼的一句必用语，也成了婚礼的标志，to say "Yes, I do." 就等于“举行婚礼”。