I need caffeine to wake up in the morning.
我需要咖啡因来早上清醒。
She drinks a lot of caffeine to stay awake during night shifts.
她喝很多咖啡因来保持清醒在夜班。
Caffeine can help improve focus and concentration.
咖啡因可以帮助提高注意力和集中力。
Some people are sensitive to caffeine and experience jitters.
有些人对咖啡因敏感，会出现紧张不安的感觉。
Energy drinks often contain high levels of caffeine.
能量饮料通常含有高含量的咖啡因。
Caffeine is a common ingredient in coffee, tea, and soda.
咖啡因是咖啡、茶和苏打水中常见的成分。
Too much caffeine consumption can lead to insomnia.
过量摄入咖啡因可能导致失眠。
Some people experience headaches when they withdraw from caffeine.
有些人在戒除咖啡因时会出现头痛。
Athletes sometimes use caffeine as a performance enhancer.
运动员有时会将咖啡因作为性能增强剂使用。
Caffeine can have both positive and negative effects on the body.
咖啡因对身体可能既有积极的也有消极的影响。
Who could possibly need that much caffeine?
谁会需要那麽多咖啡因啊？
来源: Lost Girl Season 4I feel like I need some caffeine. Do you want anything?
我想喝点咖啡 你要带点什么吗？
来源: S03Decaf is short for decaffeinated, meaning it doesn't have caffeine.
Decaf是脱咖啡因（decaffeinated）的缩写，意思是不含咖啡因。
来源: Lucy’s Day in ESLGreen tea contains both caffeine and an organic compound known as catechin.
绿茶包含咖啡因和一种叫作儿茶酸的有机化合物。
来源: Scishow Selected SeriesTechnically, iced coffee can be even better because it has more caffeine.
理论上，冰咖啡效果更好，因为含咖啡因更多。
来源: Intermediate and advanced English short essay.Still you'll have some caffeine in your system for hours after that.
在那几小时后你体内还会留存一些咖啡因。
来源: Graphic Information ShowPeople often try to cut out caffeine or sugar or bread and carbs.
有人经常会尝试戒掉咖啡因、糖、面包和碳水化合物。
来源: Grandpa and Grandma's grammar classAt night, do not drink coffee, or other drinks that contain the chemical caffeine.
晚上，不要喝咖啡或其他含有咖啡因的饮料。
来源: Global Slow EnglishOne of the benefits to drinking coffee is the caffeine.
喝咖啡的好处之一是咖啡因。
来源: Intermediate and advanced English short essay.You may discover you don't need as much caffeine as you think you do.
你可能就会发现自己并不需要那么多的咖啡因。
来源: Science in LifeI need caffeine to wake up in the morning.
我需要咖啡因来早上清醒。
She drinks a lot of caffeine to stay awake during night shifts.
她喝很多咖啡因来保持清醒在夜班。
Caffeine can help improve focus and concentration.
咖啡因可以帮助提高注意力和集中力。
Some people are sensitive to caffeine and experience jitters.
有些人对咖啡因敏感，会出现紧张不安的感觉。
Energy drinks often contain high levels of caffeine.
能量饮料通常含有高含量的咖啡因。
Caffeine is a common ingredient in coffee, tea, and soda.
咖啡因是咖啡、茶和苏打水中常见的成分。
Too much caffeine consumption can lead to insomnia.
过量摄入咖啡因可能导致失眠。
Some people experience headaches when they withdraw from caffeine.
有些人在戒除咖啡因时会出现头痛。
Athletes sometimes use caffeine as a performance enhancer.
运动员有时会将咖啡因作为性能增强剂使用。
Caffeine can have both positive and negative effects on the body.
咖啡因对身体可能既有积极的也有消极的影响。
Who could possibly need that much caffeine?
谁会需要那麽多咖啡因啊？
来源: Lost Girl Season 4I feel like I need some caffeine. Do you want anything?
我想喝点咖啡 你要带点什么吗？
来源: S03Decaf is short for decaffeinated, meaning it doesn't have caffeine.
Decaf是脱咖啡因（decaffeinated）的缩写，意思是不含咖啡因。
来源: Lucy’s Day in ESLGreen tea contains both caffeine and an organic compound known as catechin.
绿茶包含咖啡因和一种叫作儿茶酸的有机化合物。
来源: Scishow Selected SeriesTechnically, iced coffee can be even better because it has more caffeine.
理论上，冰咖啡效果更好，因为含咖啡因更多。
来源: Intermediate and advanced English short essay.Still you'll have some caffeine in your system for hours after that.
在那几小时后你体内还会留存一些咖啡因。
来源: Graphic Information ShowPeople often try to cut out caffeine or sugar or bread and carbs.
有人经常会尝试戒掉咖啡因、糖、面包和碳水化合物。
来源: Grandpa and Grandma's grammar classAt night, do not drink coffee, or other drinks that contain the chemical caffeine.
晚上，不要喝咖啡或其他含有咖啡因的饮料。
来源: Global Slow EnglishOne of the benefits to drinking coffee is the caffeine.
喝咖啡的好处之一是咖啡因。
来源: Intermediate and advanced English short essay.You may discover you don't need as much caffeine as you think you do.
你可能就会发现自己并不需要那么多的咖啡因。
来源: Science in Life探索常用高频词汇