Mechanical prophylaxis
[医] 器械预防
🧩 词语组成解析
n. 预防\\n[医] 预防
🗣️ 情景例句
I think
我想，
A man without a smiling face must not open a shop.
人无笑脸，不要开店。
What's the point of going to college?
上大学有何用？