caffeine
扩展词汇
英
['kæfiːn]
美
['kæfiːn]
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n.
名词
- 【化】咖啡因
- 咖啡碱
- 三甲黄嘌呤
- 茶精(兴奋剂)
Noun:
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a bitter alkaloid found in coffee and tea that is responsible for their stimulating effects
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用作名词 (n.)
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Now there are cola drinks without caffeine.
现在也有不含咖啡因的可乐类饮料。
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I'm trying to cut down on sugar and caffeine.
我决定减少对糖和咖啡因的摄取量。
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Caffeine makes people nervous and unsleeping.
咖啡因是人们紧张和难以入睡。
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