expensive相关的词根或词缀是: pendpens pendpenspondponder

比较级： more expensive
最高级： most expensive

Why is tuition so expensive today ?

为什么现如今学费这么贵？

The surge itself was expensive .

增兵本身就很昂贵。

We gave them expensive and often irrelevant economic advice .

我们向他们提出代价高昂、却往往不切实际的经济建议。

Expensive things don 't create lasting happiness and security .

昂贵的东西无法带来持久的幸福和安逸。

Such lessons are both difficult and expensive to teach .

这样的课教起来既困难重重又价格不菲。