caffeine

英[?k?fi?n]
美[?k?fi?n]

基本釋義

n.
[藥]咖啡因; 咖啡堿; 茶精(興奮劑)

實(shí)用例句

Stay away from caffeine in the afternoon and evening.

在下午和晚上避免接觸咖啡因.

期刊摘選

The assay of theobromine and caffeine mother solution of theobromine is determined by HPLC.

控制提取工藝需要測(cè)定柯柯豆堿母液中柯柯豆堿、咖啡因的含量.

期刊摘選

In fact, I never knew how much caffeine I had drunk.

其實(shí)我以前根本都不知道喝了多少.

期刊摘選

Downing caffeine can be easier, quicker, and socially more eptable in many ways.

喝杯咖啡可能更容易 、 更快 、 而且在很多方面更容易讓社會(huì)接受.

期刊摘選

Avoid alcohol and caffeine, which can contribute to depression and anxiety.

避免飲酒和食用咖啡因, 它們可導(dǎo)致抑郁和焦慮.

期刊摘選

In addition, no caffeine, not affect sleep. Bubbles may 10 times more.

此外, 本產(chǎn)品不含咖啡因, 不影響睡眠. 每袋可沏泡10次以上.

期刊摘選

Caffeine and other stimulants cannot overcome the effects of severe sleep deprivation.

咖啡因和其它興奮劑不能克服嚴(yán)重睡眠剝奪的影響.

期刊摘選

Caffeine makes people nervous and unsleeping.

咖啡因是人們緊張和難以入睡.

期刊摘選

Avoid caffeine or alcohol; memorise your shopping list.

避免飲用咖啡因或酒精飲料; 回憶你的購物清單.

期刊摘選

They afield appeal mainly to young people andare fueled mainly by caffeine.

它們主要針對(duì)青年人,依靠咖啡因來讓人提神.

期刊摘選

Researchers found that caffeine did indeed heighten the pressure felt.

研究者發(fā)現(xiàn)咖啡因確實(shí)會(huì)增強(qiáng)壓迫感.

期刊摘選

Research by Australian scientists has found that many teenagers are affected by caffeine.

澳大利亞科學(xué)家的研究表明,咖啡因?qū)υS多孩子造成了影響.

期刊摘選

Caffeine can inhibit lung pant for parasympathetic nerve, reduce asthma attacks.

定肺喘咖啡因會(huì)抑制副交感神經(jīng), 減少氣喘病的發(fā)作.

期刊摘選

Shaw's lab previously showed that they can use caffeine and methamphetamine to keep flies awake.

肖博士之前的研究表明咖啡因和脫氧麻黃堿可用于維持果蠅的清醒狀態(tài).

期刊摘選

The product has 50 per cent less caffeine than regular Nescafe instant coffee.

這種產(chǎn)品的咖啡因含量比普通的雀巢速溶咖啡少一半.

期刊摘選

It was awful but for what it cost I drank it anyway to get the caffeine.

這是可怕的,但它的成本i喝它無論如何得到咖啡因.

期刊摘選

Caffeine is a stimulant which acts on the nervous system.

咖啡因是一種對(duì)神經(jīng)系統(tǒng)產(chǎn)生影響的興奮劑.

期刊摘選

It also means maintaining a approach to things like alcohol and caffeine.

這也意味著對(duì)于像酒精和咖啡因的東西要適可而止.

期刊摘選

Using 1 % calcium oxide has more single caffeine production rate, extraction rate and purity.

1%氧化鈣水溶液單純提取咖啡因的得率 、 提取率和純度較高.

期刊摘選

Caffeine restriction and aerobic exercise often reduce symptoms.

限制咖啡和增氧健身運(yùn)動(dòng)可以減輕癥狀.

期刊摘選

Avoiding caffeine also may help reduce anxiety.

遠(yuǎn)離咖啡因也能降低焦慮.

期刊摘選

Which foods and beverages contain caffeine?

哪些食物、飲料中含有咖啡因?

期刊摘選

The caffeine in coffee can jangle the nerves.

咖啡中的咖啡因會(huì)使神經(jīng)緊張。

柯林斯例句

As a rule of thumb, a cup of filter coffee contains about 80mg of caffeine.

憑經(jīng)驗(yàn)估計(jì),一杯過濾咖啡約含80毫克咖啡因。

柯林斯例句

As little as 50mg of caffeine can produce pharmacological effects.

僅僅50毫克的咖啡因就能產(chǎn)生藥理效果。

柯林斯例句

The shaking inside may be due to low blood sugar, too much caffeine or too many cigarettes.

心悸可能是由于低血糖、咖啡因過量或抽煙過多。

柯林斯例句

Caffeine can cause palpitations and headaches.

咖啡因會(huì)引起心悸和頭痛。

柯林斯例句

真題例句

Caffeine, a substance found in coffee and some soft drinks, is also a drug.

出自-2015年12月聽力原文

The caffeine—the equivalent of two strong cups of coffee, was sufficient to reverse this effect, with some cyclists even displaying increased eye movement speeds.

2017年6月四級(jí)真題(第三套)閱讀 Section A

To find out, researchers gave 11 volunteer cyclists a carbohydrate?solution either with a moderate dose of caffeine, ?which is known to stimulate the central nervous system, or as a placebo without, during 3 hours of?cycling.

2017年6月四級(jí)真題(第三套)閱讀 Section A

In West Africa, people have long chewed kola nuts as stimulants, because they contain caffeine that also occurs naturally in tea, coffee, and chocolate.

2017年12月六級(jí)真題(第一套)閱讀 Section C

So there could be less protein, more sugar and some additives you wouldn't expect, such as caffeine.

2019年12月六級(jí)真題(第二套)閱讀 Section B

英英釋義

Noun
  • 1. a bitter alkaloid found in coffee and tea that is responsible for their stimulating effects

同義詞

最新英語單詞

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