expensive的同义词都有：
adj.昂贵的；花钱的rich/dear/costly
expensive
美/ɪkˈspensɪv/英/ɪkˈspensɪv/
adj.昂贵的；花钱的
比较级moreexpensive
最高级mostexpensive
双语例句：
I can't afford thisexpensivecoat at the moment.
我目前买不起这件昂贵的外套。
The maintenance of imported cars is relativelyexpensive.
进口车的保养费用相对较高。
Thisexpensiveproduct is targeted for rich people.
这种高价的产品的目标用户是富人。
