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This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. Saliva contains many useful components: lubricants, enzymes for breaking down food and now compounds that can reveal a persons age. Thats according to a
Ever get a sour stomach after your morning coffee? Well, you might end up switching to a dark roastbecause that coffee concoction may leave you with a happier tummy. That's according to the research presented at the American Chemical Society meeting
AGRICULTURE REPORT - Restrictions on Methyl Bromide By Mario Ritter Broadcast: Tuesday, March 16, 2004 This is Steve Ember with the VOA Special English Agriculture Report. Graphic Image Some chemicals
Science and Technology Epigenetics and stress Baby blues 科技 外因遗传与压力 新生儿蓝调曲 A mother's stress while she is pregnant can have a long-lasting effect on her children's genes 母亲孕期压力过大会对孩子的基因造成长
HEALTH REPORT -July 10, 2002: Acrylamide in Fried Foods By Nancy Steinbach This is the VOA Special English Health Report. Twenty-three international health experts say they are concerned about the pos
大家都知道on the run的意思是“(为逃避警察追捕而)逃跑、躲藏”,可你知道吗,英语中还有一个俚语on the lam,也可以表示此意。 Lam起源于挪威词lamja,