主席

In a sentence

• 主席正在主持会议。

  The chairman is presiding over the meeting.

  Here, "主席" refers to the individual chairing or leading the meeting, emphasizing their leading role.

• 她是我们俱乐部的主席。

  She is the president of our club.

  In this sentence, "主席" denotes the elected or appointed leader of an organized group, such as a club or association.

• 这个国家的主席将发表重要讲话。

  The president of the country will deliver an important speech.

  Here, "主席" is used as the title for a national leader, reflecting a formal government role.