🧩 词语组成解析
n. 咖啡因；茶精（兴奋剂）
🗣️ 情景例句
Have gone to the railroad station.
去火车站。
Allow me to clear up this confusion.
容许我澄清这种混淆。
Its origin is still a mystery now.
它的起源至今仍是个谜。