used to refer to the specific matter or topic being discussed or considered
与某事有关
used to express one's uncertainty about the statement one has made as there might be something that makes it untrue
据某人所知
used to introduce a statement that presents a truth or reality, often to clarify or emphasize something
实际上
used to introduce a statement that provides factual information or clarifies a point with accuracy
事实上
used to introduce a statement that provides additional information or emphasizes the truth or reality of a situation
实际上
used to introduce further information or to indicate that something is being included
used to contrast with appearances or assumptions, emphasizing the actual state of affairs or the way things truly are
事实上
used to emphasize that something is being expressed honestly or genuinely, often revealing the real facts or feelings
实际上