expensive的动词和形容词（expensive是副词还是形容词）

动词形式是expend，意思是花费，花销，形容词形式是expensive，意思是昂贵的，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。