Oral hygiene
[医] 口腔卫生
🧩 词语组成解析
oral
['ɔ:rəl]
adj. 口头的，口述的;口服的;属于或关于嘴的;构成或使用言语的;
n. （尤指外语考试中的）口试;
hygiene
['haɪdʒin]
n. 卫生，卫生学;保健法;
🗣️ 情景例句
Protein, vitamins.
蛋白质， 维他命。
We were pleased to hear from your letter of 6 August that you were impressed with our selection of toys.
我们很高兴收到你方8月6日来函得知你方对我们的玩具非常感兴趣。
He thinks himself somebody, but we think him nobody.
他自以为是重要人物，但我们觉得他什么也不是。