themen.主题；题目；主旋律theme parkn.主题公园

1. The theory of Theme in systemic-functional linguistics developed from the Prague School approach, and several modifications have been witnessed.
   功能语法中的主位理论始于布拉格学派，不断经历修改创新，但是对英汉新闻语篇中的主位以及主位推进模式进行对比分析的学者却为数不多。