Notice how one of the steps—adding a middle name—is marked as optional.

注意其中一个步骤 — 添加中间名字 — 是如何被标记为可选的。

youdao

Steven: I'm not sure what she wants as a middle name. We haven't decided yet.

史蒂文：我不知道她想给孩子起什么中间名，我们还没有决定。

youdao

Some American women use their former last name as a middle name after they marry.

也有些美国妇女用她们结婚前使用的姓作为中间名。

youdao

In some cases the child takes the mother's surname as a middle name and the father's name as the family name.

VOA: special.2009.07.06

Two new celeb moms went serene with blue: Beyonce with Blue Ivy for her daughter, and Alicia Silverstone with Blu as a middle name for her son Bear.

CNN: The top baby names of 2013

The guru who got a first-term U.S. senator with a middle name of Hussein elected president was pushed yesterday through a trap door into a much different world.

FORBES: Obama's Cold Heart Might Be A Good Thing

My mum was fairly mystified when she found out but she didn't give me a middle name to start with so it's sort of her fault anyway, leaving me a blank canvas to paint on.

BBC: All in a name: 25 of your changes