1
be protected
The area is protected.
该地区是受保护的。
受保护的；被保护的
先理解核心含义，再看它在真实句子里的用法。
受保护的；被保护的
defended; kept safe from harm or danger
The area is protected.
该地区是受保护的。
受保护的,被保卫的
defended
具有受保护访问修饰符的,表示程序元素可被子类访问但不能被程序一般访问。
Having the protected access modifier, indicating that a program element is accessible to subclasses but not to the program in general.
The protected area is home to many rare species.
这个受保护的区域是许多稀有物种的家园。
She felt protected in her new home with a security system.
有了安全系统，她在新家里感到受保护。
The document is protected by a password.
这份文件受密码保护。
The area is protected.
该地区是受保护的。
They felt protected from harm.
他们感到受到保护免受伤害。
The system is protected against viruses.
该系统受到保护抵御病毒。
Not this
He wore protected clothing to avoid injury.
Use this
He wore protective clothing to avoid injury.
Protected 是过去分词或形容词表示“受保护的”，而这里需要用 protective 表示“起保护作用的”，两者易混淆。
Not this
The plant is protected frost by a cover.
Use this
The plant is protected from frost by a cover.
Protected 后面常接 from 表示“免受……的伤害”，缺少介词 from 不符合英语搭配。
Not this
We must protected the environment.
Use this
We must protect the environment.
Protected 是过去分词或形容词，情态动词 must 后应接动词原形 protect，不可用过去分词形式。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
保护区
The national park is a protected area.
这个国家公园是一个保护区。
受保护的物种
Many protected species live in this forest.
许多受保护的物种生活在这片森林里。
受保护地位
The plant was granted protected status.
这种植物被授予了受保护地位。
受保护的信息
We must keep all protected information confidential.
我们必须对所有受保护的信息保密。
受保护的权利
The law ensures our protected rights.
法律保障我们的受保护权利。
受保护的环境
Children need a protected environment to grow up safely.
儿童需要一个受保护的环境才能安全成长。
受法律保护
Endangered species are protected by law.
濒危物种受法律保护。
免受伤害
Children should be protected from harm.
儿童应免受伤害。
Use protected naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
想象被保护（protected）的珍宝在保险箱里，安全无虞。
语域中性，通常用于各种保护场景，如数据安全、法律权益、环境保护等。
常用搭配介词 from 或 against。
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.