🧩 词语组成解析
caffeine
[['kæfi:n]]
n. 咖啡因, 咖啡碱\\n[化] 咖啡因; 咖啡碱
🗣️ 情景例句
All right. Is...is Susan coming?
好吧, Susan来吗?
How long will the sale last?
折价销售多久?
What are their jobs?
他们是做什么工作的?