摘要
对于专业吃货来说，有什么比亲手把自己最心爱的食物掉在地上更伤心的了？如果你知道五秒法则的话，应该会在食物掉地后的五秒之内，以迅雷不及掩耳盗铃之势捡起。所以，在三秒内捡起来呢？它看起来还能吃!但是抛开法则，以科学的角度来看，真地能吃吗？
5 seconds is more than enough time for bacteria to accumulate on your food. What sucks is when you drop your beloved food on the ground （oh no! ）. You already know the rules, so you start counting down from five as soon as it hits the ground. Three seconds？ Oh, looks like it＇s still edible! Or is it？
