In English, the term "to expel" means to officially force someone to leave an organization or group, such as a school or club. It is often used in the context of punishment for breaking rules or laws. The word "expel" comes from the Latin "expellere," which means "to drive out." Here are some example sentences in English and their translations:

The school expelled the student for cheating on the exam. (学校开除了那个学生，因为他在考试时作弊。)

The board of directors voted to expel the member for misconduct. (董事会投票决定开除那位成员，因为他有不当行为。)

The club expelled the member for failing to pay their dues. (俱乐部开除了那位成员，因为他没有支付会费。)