🧩 词语组成解析
[医] 普鲁卡音青霉素G
abbr. 维生素k（vitamin k）
🗣️ 情景例句
I'm afraid I didn't get on very well in the exam.
我这次考试恐怕不太顺利。
What's the big deal?
这有什么大不了的？
It was my aunt Lucy.
是我姑母露西打来的。