costly是一个雅思常考词汇，这个词的常用解释为a. 昂贵的， 价值高的， 豪华的，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。
在儒勒·凡尔纳的《海底两万里》里，有这样的句子出现：
-- Leaning on his elbow against an angle of a costly mosaic table, he no longer saw me, he had forgotten my presence.
在阿瑟·柯南·道尔的《巴斯克维尔的猎犬》里，有这样的句子出现：
-- He fights for the mere pleasure of fighting and is equally ready to take up ei-ther side of a question, so that it is no wonder that he has found it a costly amusement.
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