카페인
kapein
NounTOPIK 2 - Advanced
Definitions
caffeine
Solid matter contained in coffee, tea leaves, etc., that tastes bitter, stimulates one's nerves, and is addictive when taken in large quantities.
커피나 찻잎 등에 들어 있고 신경을 흥분시키며 많이 먹으면 중독이 되는, 쓴맛이 나는 무색 고체.
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