Vocab Bloom Hub

caffeine

/ˈkæf.iːn/

翻译: 一种存在于咖啡、茶等饮料中的苦味生物碱,能刺激中枢神经系统,起到提神和兴奋的作用。

1 个条目

noun

/ˈkæf.iːn/B2formalscientific
  • zh一种存在于咖啡、茶等饮料中的苦味生物碱,能刺激中枢神经系统,起到提神和兴奋的作用。

A bitter alkaloid present in coffee and tea, known for its stimulating effects on the central nervous system.

不可数

  1. Stimulant compoundB1formal

    A naturally occurring bitter substance found in coffee, tea, and some other plants, known for its ability to increase alertness and reduce fatigue.

    zh刺激性化合物

    • Many people drink coffee for its caffeine content to stay awake.
    • Caffeine can improve focus and concentration.
    • Too much caffeine may cause jitters or insomnia.
词形
  • caffeines plural form
  • caffeines' possessive plural form
  • caffeine's possessive singular form