1. The house was full of costly, but very vulgar furniture.
    房子里摆满了昂贵但俗不可耐的家具。

2. The costly result is a growing greenness in the cities and a healthier environment for all the civilians who live there.
    虽然代价高昂，却换来了城市里不断增多的绿地和居民们更为健康的生活环境。

3. They want to build more parks, but land in cities is quite costly.
    他们想建造更多的公园，但是城里地价十分昂贵。

4. It would be too costly to repair the car.
    修理这辆汽车要花很多钱.

5. I almost succumbed, but they are too costly, and how often can I wear them?
    我几乎也要赶潮流买高跟鞋了，但是它们太贵，再说我多久才穿一次呢？