When you gasp, you take a short quick breath through your mouth, especially when you are surprised, shocked, or in pain.
If you pant, you breathe quickly and loudly with your mouth open, because you have been doing something energetic.
A brisk activity or action is done quickly and in an energetic way.
Taking a brisk walk can often induce a feeling or well-being.
The horse broke into a brisk trot.
If someone has a quick temper, they are easily made angry.
a brisk walk裡的brisk不能換作quick，同理a quick temper裡的quick不能換作brisk。
In linguistics, collocation is the way that some words occur regularly whenever another word is used. 通常你不能改變語詞的組合方式，因為習慣勝過一切語法或邏輯。
2014-12-27 12:55:37 補充：
以上說明及例句取自Collins Cobuild English Dictionary for Advanced Learners