一、what的含义及用法介绍 what作为关系代词时，意为什么;…的事物;无论什么;凡是…的事物;多么;真;太。例句：What is your name?你叫什么名字？What you need is a good meal.你需要的是一顿美餐。What a beautiful house!多么漂亮的房子啊！I don't know what you're on about....