riddle 英['rɪdl] 美[ˈrɪdl] n. 粗筛;谜语;猜不透的难题,难解之谜 v. 用筛分选(卵石等),筛分;用子弹把耙子打成蜂窝似的;精查(证据)... 第三人称单数:riddles;过去分词:riddled;名词复数:riddles;现在分... [例句]The chameleon on a mirror riddle is best kept in idealized form as a thought experiment.镜子上的变色龙之谜恐怕最好仅作为思想实验来保持其理想化的形式。