混沌学理论提到，如果一只蝴蝶煽动翅膀，卷风的路线会因其改变，全世界都将感觉到随之而来的影响。
If a butterfly flutters its wings , so chaos theory goes , it can cause the path of a tornado to change , and so the reverberations can be felt across the world .
蝴蝶卷