great comfort, especially as provided by expensive and beautiful things

to live in luxury 生活奢华

a luxury cruise 豪华巡游

a luxury hotel 豪华的酒店

something expensive that is pleasant to have but is not necessary

luxuries, such as champagne and chocolate 香槟酒和巧克力之类的奢侈品

I like to buy myself little luxuries from time to time. 我喜欢时不时地给自己买些小小的奢侈品。

something that gives you a lot of pleasure but cannot be done often

A day off work is such a luxury. 休息一天不用上班简直是一种奢侈。