TP Patterns的用法和樣例：
例句
- TP chain refers to the linear sequence formed through the combination of two or more common TP patterns.
摘要主位推進模式鏈是指由兩種及其以上常見的主位推進模式組成的序列。 - To express complicated ideas, text producers often make use of TP chains to promote and develop English scientific and technical texts.
為了表達複雜的思想，語篇生產者往往採用主位推進模式鏈來推進和發展英語科技語篇。
