第二名字

例句：

1. 1. She chose a second name to hide her true identity.
   她选择了一个第二名字来隐藏她的真正身份。
2. 2.The second name is often used in place of the first name during official documents.
   在正式文件上，第二个名字通常用来代替第一个名字。
3. 3. He gave his second name to his friends as a joke.
   他把自己的第二名字给了他的朋友们作为玩笑。