valedictory

1. ADJ A valedictory speech, letter, or performance is one that is intended as a way of saying goodbye when someone leaves another person, a place, or a job. 告別的[正式] [usu ADJ n]

Mr. Walker made his valedictory address after two years as chairman. 在擔(dān)任主席職務(wù)兩年后，沃克先生發(fā)表了告別演說。

2. N-COUNT A valedictory is a speech that is given by the student with the highest marks in their class at their graduation ceremony. (頂尖畢業(yè)生)告別演說[美國英語] [oft N n]