在没有结婚的情况下就离婚，英文中可以用 "annulment" 来表示。
"Annulment" 来自拉丁文 "annullare"，意思是 "使无效" 或 "撤销"。在法律上，"annulment" 指的是撤销婚姻，表示婚姻在法律上从未存在过。
一些英文例句和中文翻译如下：
They decided to get an annulment because they reapzed they were not compatible. 他们决定申请离婚，因为他们意识到他们不合适。
She was granted an annulment because her husband was already married to someone else. 她获得了离婚，因为她的丈夫已经和别人结婚。
He filed for an annulment because he was tricked into the marriage. 他申请离婚，因为他被骗进婚姻。
希望这些信息对你有帮助。