Wine's so expensive in this country.葡萄酒在这个国家非常昂贵。

I get very nervous because I'm using a lot of expensive equipment.我正在使用很多昂贵的设备, 所以非常紧张。

Buying the wrong paint proved to be an expensive mistake.买错油漆是个代价很大的错误。

She has very expensive tastes.她喜欢昂贵的东西。