1 (formal 正式) to discover the facts about sth 查明（事实真相）: We need to determine what happened immediately before the accident. 我们须要查明事故发生前不久的情形。

2 to make sth happen in a particular way or be of a particular type 决定；确定: The results of the tests will determine what treatment you need. 这些化验的结果会决定你需要哪种治疗方法。Age and experience will be determining factors in our choice of candidate. 年龄和经验将是我们选择候选人的决定因素。

3 (formal 正式) to decide sth officially （正式）确定，决定: A date for the meeting has yet to be determined. 会议的日期还得确定一下。