A: I think the character entity is a small, tightly-focused problem that could be solved if there was the will to do so.
答：我认为如果愿意的话，字符实体这个被紧密关注的小问题是可以得到解决的。
If you wanted to represent it as a character entity, you can type a (the decimal value) or a (the hexadecimal value) instead.
如果想将其表示为一个字符实体，可以输入a(十进制值)或A(十六进制值)。
All other non-character entity types are ignored, and no validation is performed, even for declarations within the internal subset.
所有其他非字符实体类型都被忽略，而且不进行检验，即使对于内部子集中的声明。
Some people do not want the text and prefer to use an extended character or HTML character entity to move the reader on to the full post.
有的人不想要文章，更喜欢使用一个延伸的字符，或者HTML字符实体来引导读者阅读整篇文章。
However, the character entity reference is not allowed in element and attribute names, comments, processing instructions, or CDATA sections.
不过，在项目与属性名称、注解、处理指示或cdata区段中不允许字元实体参考。
Character and parsed entity references are replaced with the literal characters (excepting special characters).
字符和已解析实体引用替换为文字字符(特殊字符除外)。
Differences may lie in entity structure, attribute ordering, character encoding, or insignificant whitespace.
区别可能在于实体的结构、属性的排列、字符的编码或者不起眼的空白。
Character entities are replaced first, before any other entity-related parsing happens.
在进行其他实体相关的解析之前，将首先替代字符实体。
All text and character entities MUST be converted to string (e.g., STR_I) or entity (entity) tokens.
所有的文本和字符实体都必须转换成字符串(如str_i)或实体(ENTITY)标记。
All others (i.e., those which can not be represented in the target character encoding) MUST be encoded using the ENTITY token.
其他的(如那些无法在目标字符编码表示的)则必须全部用ENTITY标记来编码。
To use a symbol in your text, you must set it up as an entity using its character code.
如果要在文本中使用符号，必须使用它的字符代码将它设置为实体。
Validation effort can be classified into three categories, which are validation of entity dynamic character, entity static character and entity discrete even status.
文中对验证指标重新给出三种分类：实体连续动态特性，实体交互特性和实体离散状态特性。
URL encoding converts characters that are not allowed in a URL into character-entity equivalents;
URL编码方式会将 URL中不允许的字元转换为相等的字元实体；
URL encoding converts characters that are not valid in a URL to character-entity equivalents;
URL编码方式会将 URL中无效的字元转换为对等的字元实体；
URL encoding converts characters that are not valid in a URL to character-entity equivalents;
URL编码方式会将 URL中无效的字元转换为对等的字元实体；
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