表达 “want for nothing“ 用来比喻 “拥有一切需要的事物，要什么有什么“，形容 “生活富足、舒适“。这里，动词 “want“ 的意思并不是 “想要“，而是 “需要“。这个说法多用于谈论某人在生活上得到了无微不至的照顾，什么也不缺。
Nigel is a very dedicated son. He makes sure that his elderly mother wants for nothing and that she is very well taken care of.
Even though we were never rich, my parents made sure that my siblings and I wanted for nothing when we were growing up. We were very lucky.
Pluto is the happiest dog I’ve ever met. His owner loves him so much she even gives him roast chicken for dinner! He wants for nothing!