formal/ˋfɔrmḷ; ˈfɔːm$l/adj 1 suitable for official or serious occasions [ informal ] 正式的: I only wear a suit on formal occasions. 我只有在正式场合才穿套装。‘How do you do?’ is a formal expression. “How do you do?(你好)” 是正式的表达方式。2 made or done officially 正式的﹐官方的: We made a formal complaint. 我们正式提出投诉。We haven’t reached a formal agreement yet. 我们还没有达成正式协议。3 formal education/training/qualifications education, training etc that you get in a school or college 正规教育/培训/资格 —formally adv