Felsen's treatment
[医] 费耳森氏疗法(治痢疾及溃疡性结肠炎)
🧩 词语组成解析
🗣️ 情景例句
Now, the ingredients.
现在 ，看看配料。
Laugh at your ills, And save doctors' bills.
生病不忧虑，节省医药费。
Opportunity knocks but once.
机不可失，时不再来。