caffeine
美音:[kæ´fi:n
]
英音:[kæ´fi:n
]
n.咖啡因,茶精(兴奋剂)
难易程度:
caffeine为短语/超纲词汇
词形变化:
形容词:caffeinated
caffeine
/'kæfi:n; `kæfin/
n [U] stimulant drug found in tea leaves and coffee beans 咖啡硷; 咖啡因.
n [U] stimulant drug found in tea leaves and coffee beans 咖啡硷; 咖啡因.
caffeine
n[U]
[Date: 1800-1900; Language: German;Origin: kaffein, from kaffee 'coffee', from French café]
a substance in tea, coffee, and some other drinks that makes you feel more active
→decaffeinated
Avoid caffeine (=drinks with caffeine) before bedtime.
a caffeine-free cola
>caffeinated ['kæfɪneɪtɪd/
[Date: 1800-1900; Language: German;Origin: kaffein, from kaffee 'coffee', from French café]
a substance in tea, coffee, and some other drinks that makes you feel more active
→decaffeinated
Avoid caffeine (=drinks with caffeine) before bedtime.
a caffeine-free cola
>caffeinated ['kæfɪneɪtɪd/
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