The new race car is extremely fast.

VOA: special.2009.11.03

A second consideration is the brain is extremely fast.

第二个方面就是,大脑的反应非常迅速

耶鲁公开课 - 心理学导论课程节选

This was an extremely fast speed.

VOA: special.2009.12.23

Berry's method of playing the guitar very fast was extremely popular when rock music began.

VOA: special.2010.05.12