Do not provide public or protected member variables. Use properties instead.

不要使用公开的或保护的类成员变量，使用属性。

youdao

Private and protected member variables are shown only in Expert Mode. Properties are not serialized or shown in the inspector.

私有和保护变量只能在专家模式中显示。属性不被序列化或显示在检视面板。

youdao

Theprotected keyword is a member access modifier. A protected member is accessible within its class and by derived class instances.

只有在通过派生类类型发生访问时，基类的受保护成员在派生类中才是可访问的。

youdao

He also noted that as a member of the Western NATO military alliance, Poland is now protected by a creed that says an attack on one is an attack on all.

VOA: standard.2009.09.01

"The town of Steubenville has been good at keeping this quiet and their star football team protected, " an Anonymous member wearing the group's trademark Guy Fawkes mask says in a video posted to the group's LocalLeaks website.

CNN: Defense battles social media blizzard in Ohio rape case

For example, if an employer sees on Facebook that someone is a member of a protected group (e.g. over a certain age, etc.) that employer may open themselves up to claims of discrimination if they don't hire that person.

CNN: Doug Gross,

The disciplinary commission rejected that argument, although a dissenting member argued that his conduct was protected by the First Amendment.

WSJ: Lawyers Behaving Badly Get A Dressing Down From Civility Cops