Penn sero-flocculation reaction
[医] 佩恩氏血清絮凝反应
🧩 词语组成解析
abbr. 宾夕法尼亚大学（Pennsylvania）
[人名] 塞罗
n. 絮凝；絮结产物
🗣️ 情景例句
and reading to them.
为他们朗读。
He who does not advance falls backward.
不进则退。
and that fool, Horst, aimed a fire extinguisher at me.
但那个傻瓜霍斯特把灭火器对准了我。