The report is underpinned by extensive research. 這份報告以廣泛的研究為基礎。
Discourse Theory associated with its abstract and general applicability to a wide range of pragmatics research provides a framework for the system. 摘要語篇關聯理論以其抽象的概括性與廣泛的適用性為語用學的研究提供了系統的框架。