Retrovaccine
[醫] 還原疫苗, 還原牛痘苗
??? 情景例句
I enjoy camping.
我喜歡露營。
Little thieves are hanged, but great one's escape.
竊鉤者誅，竊國者侯。
The distinction of our product is its light weight.
我們產品的特點就是它很輕。