| 单词 | caffeine |
|---|---|
| 音标 | 英[ˈkæfi:n] 美[kæˈfin, ˈkæfˌin, ˈkæfiɪn] |
| 解释 | n.[药]咖啡因;咖啡碱;茶精（兴奋剂）; |
| 例句 | N-UNCOUNT 咖啡因;咖啡碱 Caffeine is a chemical substance found in coffee, tea, and cocoa, which affects your brain and body and makes you more active. |
| 变形 |
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