Christopher Jillings is the postdoctoral fellow of the Kellogg Radiation Laboratory. He is Canadian. He speaks British English, with a sense of humour. He is nice to young students.是什么意思_Christopher Jillings is the postdoctoral fellow of the Kellogg Radiation Laboratory. He is Canadian. He speaks British English, with a sense of humour. He is nice to young students.在线翻译_英语_读音_用法_例句