词语:咖啡因热度:363

词语咖啡因拆分为汉字:

咖字的拼音、笔画、偏旁部首、笔顺、繁体字,咖字字源来历,咖字演变

1. 咖 [kā]2. 咖 [gā]咖 [kā]〔~啡〕常绿灌木或小乔木,产在热带,叶长卵形,花白色,果实红色,种子可制饮料。咖 [gā]〔~喱〕用胡椒、姜黄、香椒等的粉末做成的调味品。……

啡字的拼音、笔画、偏旁部首、笔顺、繁体字,啡字字源来历,啡字演变

〔咖(kā)~〕见“咖”。〔吗(mǎ)~〕见“吗”……

因字的拼音、笔画、偏旁部首、笔顺、繁体字,因字字源来历,因字演变

原故,原由,事物发生前已具备的条件:原~。~素。~果。病~。理由:~为(wéi )。~而。依,顺着,沿袭:~此。~之。~循(a.沿袭;b.迟延拖拉)。~噎废食。陈陈相~。……

 

查询词语:咖啡因

汉语拼音:kā fēi yīn

词语咖啡因基本解释

有机化合物,化学式C8H10O2N4·H2O。白色有光泽的柱状晶体,有苦味。多含在咖啡、可可的种子和茶叶中。可做中枢兴奋药和利尿药等。也叫咖啡碱。[英caffeine]

词语咖啡因在线造句

  1. Susan : It's not just the caffeine, but the amount of suger that's in soft. drinks. All that suger and caffeine can't be good for you.

    苏珊:不只是咖啡因的问题,还有饮料中的糖含量,这两种成分对身体都不好。

  2. Many parents, however, aren't exactly sure how much caffeine their children are drinking or how this would affect them.

    许多父母对他们子女的咖啡因摄入量及其影响也不是特别的清楚了解。

  3. To date, the only negative side effect reported from drinking green tea is insomnia due to the fact that it contains caffeine.

    至今为止,喝绿茶有报道的唯一负作用就是由于绿茶中含有的咖啡因造成失眠。

  4. Take A caffeine nap - If you are on the edge of the zone, but sort of cloudy in the head, try a caffeine nap.

    服用些咖啡因小睡一会儿---如果你感觉自己马上要进入状态,但脑袋总是闷闷的,试试这个方法。

  5. As well as being a stimulant, caffeine interrupts the flow of melatonin, the brain hormone that sends people into a sleep.

    作为一个兴奋剂,咖啡因打断了褪黑激素的流入,大脑激素使人们进入睡眠。

  6. How much caffeine puts a woman at risk?

    妇女摄入多少咖啡因才是有危险的?

  7. Try reading a book, having a cup of caffeine-free tea, listening to soothing music or taking a hot bath before heading to bed for the night.

    读点书,喝杯不含咖啡因的茶,听听舒缓的音乐或洗一个热水澡。

  8. "And, the study doesn't discuss how much caffeine would be needed for any real benefit, " he said.

    “而且,这项研究并没有说出,到底吸收多少咖啡因才有实际的好处,”他说。

  9. A woman who witnessed my complaint asked: "How can you tell if it's stale or not? For me it's just caffeine. "

    一位瞧见我抱怨的女子问道:“你怎么判断它新不新鲜呢?对我而言,它只不过是咖啡因。”

词语咖啡因百科解释:

咖啡因

咖啡因是一种黄嘌呤生物碱化合物,是一种中枢神经兴奋剂,能够暂时的驱走睡意并恢复精力。有咖啡因成分的咖啡、茶、软饮料及能量饮料十分畅销,因此,咖啡因也是世界上最普遍被使用的精神药品。在北美,90%成年人每天都使用咖啡因。很多咖啡因的自然来源也含有多种其他的黄嘌呤生物碱,包括强心剂茶碱和可可碱以及其他物质例如单宁酸。