informalKK [ˏɪnˋfɔrməl] /ˌɪnˈfɔɹməl/发音形容词1非正式的、轻松的、随意的The dinner was informal, so nobody wore a suit.这场晚餐很随意,所以没有人穿西装。2非官方的、私下的The two sides held informal talks before the official meeting.双方在正式会议前先进行了非官方的会谈。3口语的、通俗的语言学This word is too informal for an academic essay.这个字太过口语,不适合用在学术论文里。4非正规的、未登记的经济Many workers earn a living in the informal economy.许多劳工靠非正规经济维持生计。用这个字练口说→