Caffeine
['kæfiːn] or ['kæfin]
解釋/意思:
(noun.) a bitter alkaloid found in coffee and tea that is responsible for their stimulating effects.
邦妮整理--From WordNet
解釋/意思:
(n.) A white, bitter, crystallizable substance, obtained from coffee. It is identical with the alkaloid theine from tea leaves, and with guaranine from guarana.
整理:玛丽斯
解釋/意思:
n. the alkaloid or active principle of coffee and tea.
校對:尼古拉斯