doubtful是一个雅思常考词汇，这个词的常用解释为a. 怀疑的, 有疑问的，这个词在很多英文原版小说中怎么应用呢，今天小编就带您了解一下。
在戴维·赫伯特·劳伦斯的《恋爱中的女人》里，有这样的句子出现：
-- "Well," she said at last, with a doubtful laugh, "I hope he has a good time with her."
-- He was not in the least doubtful of himself, as regards Gerald.
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