OAP

例句：

1. 1. The OAPs are invited to the party as honorary guests.
   作为荣誉嘉宾，老年人的父母受邀参加聚会。
2. 2. The OAPs were surprised by the unexpected gift from their children.
   老年人的父母对孩子们送来的意外礼物感到惊讶。
3. 3. The OAPs enjoyed the warm hospitality of the local community.
   老年人的父母享受了当地社区的热情款待。