f = frequency

我的心脏，狂跳不止。
连续几个小时。

用手搓揉着胸口，却没有好一些。



如果没有办法用生理状况来解释的话。
我想我感受到了一些，别于一般的频率。



P/S:
"It's a sensitivity that we humans don't have. But animals through millions of years of evolution have developed it, and that's how they have been able to survive as a species. It is run or perish." Says Pararas-Carayannis, author of the 2001 book "The Big One: The Next Great California Earthquake -- Why, Where, and When It Will Happen."