词的是什么 cheap的反应

反义词是expensive，表示昂贵的，例如：

1、The new office block has become an expensive white elephant.这座新办公大楼成了昂贵的摆设。

2、Making the wrong decision could prove expensive.错误的决策可能会付出昂贵的代价。

3、The other one was much too expensive.另一个太贵了。