And that's how it actually gets to be so quiet when you have on, supposedly, these quite expensive headphones.

所以你戴上它后会觉得,周围非常安静，可想而知,这种耳机非常贵的。

麻省理工公开课 - 化学原理课程节选

I guess getting tattoos can be quite expensive.

我猜纹身挺贵的。

你如何看待纹身？ - SpeakingMax英语口语达人

Measles, Mumps, and Rubella this is an established vaccine also quite expensive.

麻疹,腮腺炎以及风疹三联疫苗,这是一个非常昂贵的疫苗

耶鲁公开课 - 生物医学工程探索课程节选

So it could be quite expensive.

所以，那是相当贵的。

英国的教育 - SpeakingMax英语口语达人