made, done, happening, or chosen without method or conscious decision 胡乱的,无一定之规的;任意的;任意选取的 a random sample of 100 households. 随机抽取的100户家庭样本。 ■(Statistics)governed by or involving equal chances for each item (统计)随机的 ■(of masonry) with stones of irregular size and shape (砖石建筑)石头大小不一的(或规格不一的、形状不一的)
常用词组 at random
without method or conscious decision 胡乱地;随便地,任意地 he opened the book at random. 他信手打开书本。
派生 randomly adverb randomness noun 语源
Middle English (in the sense 'impetuous headlong rush'): from Old French randon 'great speed', from randir 'gallop', from a Germanic root shared by rand