expensively
adv. 昂贵地；乱花钱地
例句
She was expensively dressed, with fine furs and jewels.
她衣饰奢华，穿戴着上好的毛皮和珠宝。
《柯林斯英汉双解大词典》
There are other restaurants where you can eat less expensively.
还有其他一些餐馆价钱稍微便宜些。
《牛津词典》
One of the great problems of modern childhood is ADHD, now increasingly and expensively treated with drugs.
现代儿童最严重问题是多动症，现在越来越多地用药物治疗，而且费用昂贵。
