![Youmayhaveheardadultssaytheyareuncomfortableinthemornin...]( "Youmayhaveheardadultssaytheyareuncomfortableinthemornin...")
- 问题详情：Youmayhaveheardadultssaytheyareuncomfortableinthemorningwithoutacupofcoffee.Onereasontheymayfeelthatwayisthatcoffeecontainscaffeine(咖啡因).Caffeineappearsnaturallyincoffee,tea,andcocoabeans,whichareusedtomakechocolate.Butnowfoodmakersareaddi...
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