expensive

“vehicle that is incredibly expensive and”

极其昂贵的飞行器

“Initially, things will be expensive because it'll be a new technology”

刚开始的时候我想可能会比较昂贵， 因为这是一项新的技术，

“But I naively chose a college that was almost as expensive as Stanford, and all of my working-class parents' savings were being spent on my college tuition.”

但我天真地选了一所学费几乎和斯坦福一样昂贵的学校，我工薪阶层父母的积蓄都花在了我的学费上。