caffeine是什么意思？caffeine怎么读？caffeine例句及用法

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

仅仅50毫克的咖啡因就能产生药理效果。

2 . The caffeine in coffee can jangle the nerves.

咖啡中的咖啡因会使神经紧张。

3 . Caffeine can cause palpitations and headaches.

咖啡因会引起心悸和头痛。

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

凭经验估计，一杯过滤咖啡约含80毫克咖啡因。

5 . 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、咖啡因过量或抽烟过多。

caffeine相关短语搭配

1 . 无水咖啡因

anhydrous barium hydroxide 无水氢氧化钡anhydrous caffeine 无水咖啡因anhydrous calcium bromide 无水溴化钙

1 . 柠檬酸咖啡因

...caffeine　咖啡碱；咖啡因；茶精；三甲黄嘌呤〔在可乐型饮料中作为中枢神经兴奋用的添加剂〕caffeine citrate　柠檬酸咖啡因caffeine-free　脱咖啡因的

1 . 含咖啡因的产品

the directions also advise people to limit caffeine caffeine products and to drink only half the bottle if they want a moderate amount of energy .它的说明书也建议人们控制含咖啡因的产品，如果他们想获得适量的能量，那么他们只需饮用半瓶以饮料。

1 . 和咖啡因

are there any substances that I can reduce or eliminate exposure to ( e.g. , alcohol , tobacco , caffeine ) in order to improve the shape of my sperm ?减少或清除什么物质，例如酒精，烟草和咖啡因，能改善精子的形态？