caffeine
noun
UK/ˈkæf.iːn/
US/ˈkæf.iːn/
Definitions of caffeine noun
- Uncountable(不可數名詞)
A stimulant chemical found in substances such as tea and coffee, known for increasing activity levels.
咖啡因
Excessive caffeine intake can lead to heart palpitations.
過量攝取咖啡因可能導致心悸。
Many people consume coffee in the morning to benefit from the stimulating effects of caffeine.
許多人早上喝咖啡以獲取咖啡因的提神效果。
Athletes sometimes use caffeine to enhance their performance.
運動員有時會使用咖啡因來提升表現。