Caffein
n. 咖啡因；茶精（兴奋剂）
✅ 同义词
🗣️ 情景例句
Dad was a busy doctor,
爸爸是个很忙的医生，
Are most of the lakes located in the north central region?
大多数湖位于向北中央的区域吗？
Relatively few people are prepared to sacrifice holiday time for the pleasure of travlling by sea.
没有多少人会为享受坐船旅行的乐趣而牺牲假期的时间。