本文作者： teens
When parents, or sometimes grandparents tell us to eat slowly and chew a mouthful of food 32 times before we swallow (吞咽) it, we tend to think: They’re nagging (唠叨) again. But according to the US infotainment (资讯娱乐) website HowStuffWorks, this is in fact a good advice and should stay with us for life.