🧩 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 promise I won't leave early.
我发誓我再也不会早走了。
You can't make something out of nothing.
巧妇难为无米之炊。
No problem! Tell me, do I have to take them before or after meals?
“那不难！告诉我，我是在饭前还是饭后吃呢？”