剑桥词典a short phrase such as "isn't it" or "don't you" that is added to the end of a sentence to check information or to ask if someone agrees with you 附加疑问成分，反意疑问句 In the sentence "It's hot , isn't it?", "isn't it" is a question tag . 这句话中，isn't it 是反意疑问句。 返回 question tag