well-formed formula
well-formed sentence
well-formed string
well-formed expression
A: Is this sentence well-formed?
A：这个句子语法正确吗？
B: Yes, it follows the standard structure perfectly.
B：是的，它完全符合标准结构。
1) 语言学：指符合语法规则的句子或短语
2) 数学/逻辑：指符合逻辑定义规范的表达式
3) 计算机：指符合特定数据格式要求的字符串或代码
符合语法规则的；结构正确的
adjective
1. Having a correct or proper structure according to the rules of a particular language or system.
Synonym: grammatical, correctly formed, structured