你知道我为啥100公尺能跑出13秒半成绩吗？

You know I lived in a remote mountainous inland area in Guangdong pronvince when I was a kid , and I needed to help my parents work in the field a lot. One day afternoon I walked home from the filed not far away from my home, and a big snake slithered towards me, that scared the hell out of me so I screamed and run to my mother who was still worked in the field. 我想这是为什么我能跑那么快的原因