/ɪkˈstræv.ə.ɡənt/
spending a lot more money or using a lot more of sth than you can afford or than is necessary 奢侈的；挥霍的；铺张浪费的
I felt very extravagant spending £100 on a dress.
我觉得花 100 英镑买一条连衣裙太奢侈了。
She’s got very extravagant tastes.
她有很奢侈的嗜好。
Residents were warned not to be extravagant with water, in view of the low rainfall this year.
鉴于今年降雨量少，居民被告诫不得浪费用水。