caffeine

中文意思

• n. 咖啡因

英文释义

• n. a bitter alkaloid found in coffee and tea that is responsible for their stimulating effects

词形变化

复数

caffeines

例句

1. n. 咖啡因

   I try to avoid drinking coffee in the evening because caffeine keeps me awake.

   我尽量避免晚上喝咖啡，因为咖啡因会让我睡不着觉。