guest speaker短语²⁵⁶⁹⁵ 基本例句 应邀发言者,客座演说者 How did a public health official from Sweden become the world’s most famous statistician, a television personality and a regular guest speaker at corporate events? 是什么使得一个来自瑞典的公众卫生官员变成了世界上最有名的统计学家、电视名人和公司项目的定期主讲嘉宾呢？ yeeyan