informalityn.非正式；不拘礼节informaladj.非正式的；不拘形式的informal college students' groups因德里基斯informal terms for journalists.非正式对记者的称呼。informal risk sharing arrangement非正式分担机制informal information communication非正式信息交流informal settlements post-colony后殖民informal institutional arrangement非正式制度安排Informal Talking of Alcoholic Drink酒祸漫议informal composite negotiating text非正式综合谈判草约informal group of university students高校非正式群体Informal Science Education Activities非正规性科学教育活动