When a message is translated into another language, the position and order of the substitution variables might have to change to meet the syntax requirements of the target language.
当一条消息被翻译成其他语言之后，有可能需要根据目标语言的语法更改替换变量的位置和顺序。
If your string contains more than one dynamic element, MSGFMT supports an extended markup syntax that allows you to specify the position of each dynamic element in the string.
如果字符串包含多个动态元素，则msgfmt支持扩展标记语法，该语法允许您指定字符串中每个动态元素的位置。
Because the needs of expression, Syntax Part can move it's static position. It can not change syntactic construction and semantic structure. It only can change pragmatic function.
在句子的语用平面上，由于表达的需要，句法成分可以移动其静态位置，移位不改变句法结构关系和语义结构关系，只改变语用功能。
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