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 hate to bring this up, but this is a nonsmoking zone.
对不起提醒一下，这儿是禁烟区。
There are seven of us altogether.
一共有7个。
What are the selling points of your product?
你们的销售重点是什么呢？