语言选择:
免费网上英汉字典|3Dict

don't-know

资料来源 : WordNet®

don't-know
     n : a person who responds `I don't know' in a public opinion
         poll; "70% in favor, 13% opposed and 17% don't-knows"
依字母排序 : A B C D E F G H I J K L M N O P Q R S T U V W X Y Z