vain是一个雅思常考词汇，这个词的常用解释为a. 徒劳的, 无效果的; 自负的; 不尊敬的，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。
在艾米利·勃朗特的《呼啸山庄》里，有这样的句子出现：
-- Not a soul knew to whom it belonged, he said; and his money and time being both limited, he thought it better to take it home with him at once, than run into vain expenses there: because he was determined he would not leave it as he found it.
-- I was vain of his commendations, and softened towards the being by whose means I earned them, and thus Hindley lost his last ally: still I couldn't dote on Heathcliff, and I wond ered often what my master saw to admire so much in the sullen boy; who never, to my recollection, repaid his indulgence by any sign of gratitude.
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