单词:N1-methylnicotinamide
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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
nasty about it 对某事态度不好 neck and neck 不分上下 need other's shoulder 希望得到某人的安慰 never can tell 很难预测 never heard of 从来没听说过 Never on your life 你休想
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
Nagoya Stock Exchange 名古屋证券交易所 naked short selling 无担保沽空;无担保卖空 Nanyang Commercial Bank Limited 南洋商业银行有限公司 Nanyang Finance Company Limited 南洋
nail n.指甲,爪;钉 v.将...钉牢,钉住 naive a.天真的 naked a.裸体的,无遮敝的,无掩饰的 name n.名字,名称;名义 v.(after)给...取(或命)名;取名,说出,指出 namely ad.即,也就