Prophylactic orthodontic
[医] 预防正牙学
🧩 词语组成解析
prophylactic
[[ˌprɔfi'læktik]]
a. 预防性的\\nn. 预防药, 预防法, 避孕用品
orthodontic
[[ˌɔ:θə'dɔntik]]
[医] 牙正常的
🗣️ 情景例句
My, what a downpour! And there doesn't seem to be any sign of its stopping.
哎呀，好大的雨呀！没有一点像要停的样子。
Which one is more expensive?
哪一个是比较贵的？
Christmas Day always begins before breakfast.
圣诞节活动总是在早餐前就开始了。