caffeine
🇺🇸
/kæˈfiːn/
🇬🇧
/ˈkæfiːn/
noun
R
a substance found in drinks like coffee and tea that helps you stay awake and alert
Drinking a cup of coffee gives you a caffeine boost to start your day.
喝一杯咖啡可以让你在开始一天时得到咖啡因的提神作用。
translation
咖啡因
词形变化
Plural
caffeines