N-heptylpenicillin
[医] 正庚青霉素, 青霉素K
🧩 词语组成解析
青霉素K
🗣️ 情景例句
It was an extremely difficult and dangerous task.
这是一项极度困难的危险的工作。
Drop dead
晕倒
Mum and Dad were not at home.
爸爸妈妈不在家。